Ashleigh, when I'm not in a dress, I'm a scientist, and I know a theory when I see one. I didn't see any in that link you posted. There's some techno jargon but no coherent mechanism proposed.
I'm not claiming to understand CDing, but that page doesn't help anyone.
I would suggest that we can all find out a lot about why we personally crossdress through therapy, if we want to know, but it's not going to be some glib, general, 200-word explanation. And as Karren has so wisely pointed out, we're gonna do it anyway so do we really need to know why?