http://files.minecraftforge.net/ForgeMultipart/ grab the latest, and replace your old one. If you don't see it in the mods folder, it's in the 1.7.10. But I always put it in the mods folder for first time installation.FMP downloads it self right? That's how I'm getting it. UNLESS it's like Lib Sandstone with Reliquary, and you have to delete it once for it to be the one.
But don't forget to make sure you have the latest version of CodeChickenCore, NEI and any other mod that uses CCC http://chickenbones.net/Pages/links.html