For me , It downloads everything when i click launch it launches it and start downloading forge and the in the console it says
"2012-12-31 19:17:46 [SEVERE] [ForgeModLoader] Error details java.lang.RuntimeException: A download error occured"[DOUBLEPOST=1356977802][/DOUBLEPOST]Here is the log:
2012-12-31 19:20:35 [INFO] [ForgeModLoader] Forge Mod Loader version 4.6.17.515 for Minecraft 1.4.6 loading
2012-12-31 19:20:35 [FINEST] [ForgeModLoader] All core mods are successfully located
2012-12-31 19:20:35 [FINEST] [ForgeModLoader] Discovering coremods
2012-12-31 19:20:35 [FINEST] [ForgeModLoader] Found a candidate coremod CodeChickenCore 0.7.0.2.jar
2012-12-31 19:20:35 [FINEST] [ForgeModLoader] Loading coremod CodeChickenCore 0.7.0.2.jar
2012-12-31 19:20:35 [FINEST] [ForgeModLoader] Loaded coremod CodeChickenCore 0.7.0.2.jar
2012-12-31 19:20:35 [FINEST] [ForgeModLoader] Found a candidate coremod NotEnoughItems 1.4.5.0.jar
2012-12-31 19:20:35 [FINEST] [ForgeModLoader] Loading coremod NotEnoughItems 1.4.5.0.jar
2012-12-31 19:20:35 [FINEST] [ForgeModLoader] Loaded coremod NotEnoughItems 1.4.5.0.jar
2012-12-31 19:20:35 [FINEST] [ForgeModLoader] Found library file argo-2.25.jar present and correct in lib dir
2012-12-31 19:20:35 [FINEST] [ForgeModLoader] Downloading file
http://files.minecraftforge.net/fmllibs/guava-12.0.1.jar
2012-12-31 19:20:35 [INFO] [ForgeModLoader] Downloading file
http://files.minecraftforge.net/fmllibs/guava-12.0.1.jar
2012-12-31 19:20:40 [SEVERE] [ForgeModLoader] There was a problem downloading the file guava-12.0.1.jar automatically. Perhaps you have an environment without internet access. You will need to download the file manually or restart and let it try again
2012-12-31 19:20:40 [FINEST] [ForgeModLoader] Found library file asm-all-4.0.jar present and correct in lib dir
2012-12-31 19:20:40 [FINEST] [ForgeModLoader] Downloading file
http://files.minecraftforge.net/fmllibs/bcprov-jdk15on-147.jar
2012-12-31 19:20:40 [INFO] [ForgeModLoader] Downloading file
http://files.minecraftforge.net/fmllibs/bcprov-jdk15on-147.jar
2012-12-31 19:20:45 [SEVERE] [ForgeModLoader] There was a problem downloading the file bcprov-jdk15on-147.jar automatically. Perhaps you have an environment without internet access. You will need to download the file manually or restart and let it try again
2012-12-31 19:20:45 [SEVERE] [ForgeModLoader] There were errors during initial FML setup. Some files failed to download or were otherwise corrupted. You will need to manually obtain the following files from these download links and ensure your lib directory is clean.
2012-12-31 19:20:45 [SEVERE] [ForgeModLoader] *** Download
http://files.minecraftforge.net/fmllibs/argo-2.25.jar
2012-12-31 19:20:45 [SEVERE] [ForgeModLoader] *** Download
http://files.minecraftforge.net/fmllibs/guava-12.0.1.jar
2012-12-31 19:20:45 [SEVERE] [ForgeModLoader] *** Download
http://files.minecraftforge.net/fmllibs/asm-all-4.0.jar
2012-12-31 19:20:45 [SEVERE] [ForgeModLoader] *** Download
http://files.minecraftforge.net/fmllibs/bcprov-jdk15on-147.jar
2012-12-31 19:20:45 [SEVERE] [ForgeModLoader] <===========>
2012-12-31 19:20:45 [SEVERE] [ForgeModLoader] The following is the errors that caused the setup to fail. They may help you diagnose and resolve the issue
2012-12-31 19:20:45 [SEVERE] [ForgeModLoader] A download error occured
2012-12-31 19:20:45 [SEVERE] [ForgeModLoader] A download error occured
2012-12-31 19:20:45 [SEVERE] [ForgeModLoader] <<< ==== >>>
2012-12-31 19:20:45 [SEVERE] [ForgeModLoader] The following is diagnostic information for developers to review.
2012-12-31 19:20:45 [SEVERE] [ForgeModLoader] Error details
java.lang.RuntimeException: A download error occured
at cpw.mods.fml.relauncher.RelaunchLibraryManager.downloadFile(RelaunchLibraryManager.java:483)
at cpw.mods.fml.relauncher.RelaunchLibraryManager.handleLaunch(RelaunchLibraryManager.java:132)
at cpw.mods.fml.relauncher.FMLRelauncher.setupHome(FMLRelauncher.java:155)
at cpw.mods.fml.relauncher.FMLRelauncher.relaunchApplet(FMLRelauncher.java:242)
at cpw.mods.fml.relauncher.FMLRelauncher.appletEntry(FMLRelauncher.java:212)
at net.minecraft.client.MinecraftApplet.init(MinecraftApplet.java:25)
at net.minecraft.Launcher.init(Launcher.java:81)
at net.ftb.mclauncher.MinecraftFrame.start(MinecraftFrame.java:100)
at net.ftb.mclauncher.MinecraftLauncher.main(MinecraftLauncher.java:193)
Caused by: java.net.SocketTimeoutException: Read timed out
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(Unknown Source)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown Source)
at java.lang.reflect.Constructor.newInstance(Unknown Source)
at sun.net.
www.protocol.http.HttpURLConnection$6.run(Unknown Source)
at sun.net.
www.protocol.http.HttpURLConnection$6.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at sun.net.
www.protocol.http.HttpURLConnection.getChainedException(Unknown Source)
at sun.net.
www.protocol.http.HttpURLConnection.getInputStream(Unknown Source)
at cpw.mods.fml.relauncher.RelaunchLibraryManager.downloadFile(RelaunchLibraryManager.java:467)
... 8 more
Caused by: java.net.SocketTimeoutException: Read timed out
at java.net.SocketInputStream.socketRead0(Native Method)
at java.net.SocketInputStream.read(Unknown Source)
at java.net.SocketInputStream.read(Unknown Source)
at java.io.BufferedInputStream.fill(Unknown Source)
at java.io.BufferedInputStream.read1(Unknown Source)
at java.io.BufferedInputStream.read(Unknown Source)
at sun.net.
www.http.HttpClient.parseHTTPHeader(Unknown Source)
at sun.net.
www.http.HttpClient.parseHTTP(Unknown Source)
at sun.net.
www.protocol.http.HttpURLConnection.getInputStream(Unknown Source)
at sun.net.
www.protocol.http.HttpURLConnection.getHeaderField(Unknown Source)
at java.net.URLConnection.getHeaderFieldLong(Unknown Source)
at java.net.URLConnection.getContentLengthLong(Unknown Source)
at java.net.URLConnection.getContentLength(Unknown Source)
at cpw.mods.fml.relauncher.RelaunchLibraryManager.downloadFile(RelaunchLibraryManager.java:466)
... 8 more
2012-12-31 19:20:45 [SEVERE] [ForgeModLoader] Error details
java.lang.RuntimeException: A download error occured
at cpw.mods.fml.relauncher.RelaunchLibraryManager.downloadFile(RelaunchLibraryManager.java:483)
at cpw.mods.fml.relauncher.RelaunchLibraryManager.handleLaunch(RelaunchLibraryManager.java:132)
at cpw.mods.fml.relauncher.FMLRelauncher.setupHome(FMLRelauncher.java:155)
at cpw.mods.fml.relauncher.FMLRelauncher.relaunchApplet(FMLRelauncher.java:242)
at cpw.mods.fml.relauncher.FMLRelauncher.appletEntry(FMLRelauncher.java:212)
at net.minecraft.client.MinecraftApplet.init(MinecraftApplet.java:25)
at net.minecraft.Launcher.init(Launcher.java:81)
at net.ftb.mclauncher.MinecraftFrame.start(MinecraftFrame.java:100)
at net.ftb.mclauncher.MinecraftLauncher.main(MinecraftLauncher.java:193)
Caused by: java.net.SocketTimeoutException: Read timed out
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(Unknown Source)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown Source)
at java.lang.reflect.Constructor.newInstance(Unknown Source)
at sun.net.
www.protocol.http.HttpURLConnection$6.run(Unknown Source)
at sun.net.
www.protocol.http.HttpURLConnection$6.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at sun.net.
www.protocol.http.HttpURLConnection.getChainedException(Unknown Source)
at sun.net.
www.protocol.http.HttpURLConnection.getInputStream(Unknown Source)
at cpw.mods.fml.relauncher.RelaunchLibraryManager.downloadFile(RelaunchLibraryManager.java:467)
... 8 more
Caused by: java.net.SocketTimeoutException: Read timed out
at java.net.SocketInputStream.socketRead0(Native Method)
at java.net.SocketInputStream.read(Unknown Source)
at java.net.SocketInputStream.read(Unknown Source)
at java.io.BufferedInputStream.fill(Unknown Source)
at java.io.BufferedInputStream.read1(Unknown Source)
at java.io.BufferedInputStream.read(Unknown Source)
at sun.net.
www.http.HttpClient.parseHTTPHeader(Unknown Source)
at sun.net.
www.http.HttpClient.parseHTTP(Unknown Source)
at sun.net.
www.protocol.http.HttpURLConnection.getInputStream(Unknown Source)
at sun.net.
www.protocol.http.HttpURLConnection.getHeaderField(Unknown Source)
at java.net.URLConnection.getHeaderFieldLong(Unknown Source)
at java.net.URLConnection.getContentLengthLong(Unknown Source)
at java.net.URLConnection.getContentLength(Unknown Source)
at cpw.mods.fml.relauncher.RelaunchLibraryManager.downloadFile(RelaunchLibraryManager.java:466)
... 8 more