what does railcraft do?, and aye, it may, i'm not 100% sure, tekkit does add a lot of rails for minecarts.
edit; also, do you know of any guides explaining inchworm drives?, all i got with a search engine was people mentioning the phrase, it sounds like what i was trying to make origanally, some sort of moving platform that can move without me setting up a rail-line of motors for it to slide along.
edit2; also, can you grow redpower rubber trees from the sapling wwhich drop from them?