I don't know exactly what the problem is, so i didn't know exactly what to title this. I have almost zero experience in modding or anything. I decided to use the twitch mod-loader to just throw together a few mods that a remember having fun with in like elementary school. so far i've gotten flans, MC Heli, and too many items. I decided to also try first aid because i'm just curious how it works with something like flans. I did the same thing with it that I did with the other mods(toss the .jar file into the mods folder) but it just doesn't show up when I launch the game. I've tried many times and nothing i've tried has worked. 1.7.10 btw.