Hi, I have spent many hours in Industrial craft and I really like it, but now that I have downloaded the new tekkit, it wont let me put the mod in. I have put other mods (and made sure that they were 1.5.1) into the pack and they work fine, but not Industrial craft. I have tried many versions of it and still no luck. Any help would be great, and the correct version of Industrial Craft would be even better, Thanks!