Go down to "In Depth FAQs" and click on the second "Create-A-Wrestler" FAQ. It's got a Diesel CAW in there.
I didn't provide a direct link on the assumption that anyone asking for something that's on GameFAQs is probably unaware of the site, in which case it would be best for them to start on the front page and see exactly what the site has to offer. :p
... Just for the record, I've been waiting for LP:T to come out, and I'm buying it within the next few days or so. I had a lot of fun playing Disgaea, and the depth of LP seems to be just as impressive.