"So basically this whole thing is about Yuschenko vs. Kuchma not Yuschenko vs. Yanukovich." ==> Yuschenko vs. Kuchma's legacy, more like.
"Also, I've been hearing that Putin sent MVD Special Forces("Vit'yaz"??) to Kiev for security purposes.. is this correct?}" ==> why would you even bother asking?

Of course not. Yuschenko HQ was simply attempting to force the events in preparation for a coup. Now they've backed down, so there is no more need for such rumors.