I know you guys are probably sick to death of these Cloth Questions, well, here's another.

I made a cloth object to fit around my character. Well, it didn't work the way I wanted, so I modeled one out of NURBs. Well, that was worse, so I tried using the garment/panels/stitching, and it came out pretty good. Problem is, once I ran the simulation I get this:

Warning: Ignoring invalid cloth collision object: 3

It's ignoring object 3,4,5,6,13,15,16.

And it doesn't do anything with the cloth object. It just ignores those and won't move on.

I'm confused as to what to do next. Any help will be appreciated, thanks.