The launcher relies on the motoblur framework, and will not work on non-blur roms.
We could maybe port it like the blur 3D launcher, I don't know. It might even involve re-building the launcher from scratch. Maybe we need to port the blur-framework to custom roms instead. m11kkaa found a Chinese MIUI rom with motoblur. I didn't really look into it, but maybe we could port it to cm7 Anyway, the thread is dead now.