Past couple of days I've been trying to figure out Vilja's system for equipping gear, and it still really doesn't make much sense...Yes, I read the download thingy from the site, but that still really didn't help me. Not sure what I did earlier today, but she got naked, and wouldn't put anything on, till I took a piece of forsworn armor out of her inventory, then finally she put a dress on, then when I gave the armor back to her, she put it on...no clue what is going on though.

You will likely get a better response posting this question in the Vilja thread:

http://www.gamesas.com/topic/1483427-relz-vilja-in-skyrim-ver-203-thread-no-7/