Ok so lets get things straight i want to add ore spawn to ftb unleashed but every time i add it it crashes and this is the error report http://pastebin.com/Mc1PCf4Z. Hope some one can help
Look for in-depth tutorials on how to do it - google would be an awesome place to start with, as if you probably mess something up, it might just break your game completely.
So, basically... Make backups!