I would like to add another mod to my personal Tekkit pack server for me and my friends called Mystcraft but I do not know where to add it into the tekkit launcher thing in order to get it to work. Dropping it into the mod folder did not work so I was going to try and add it directly to the Minecraft.jar but that appeared to have been unedited because it still had its meta-inf Could someone please tell me where i am supposed to add it.