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
Yep... http://www.gamespot.com/ps2/adventure/legobatman/news.html?sid=6168111&om_act=convert&om_clk=gsupdates&tag=updates;title;1 Oh also found this an article saying that we'll get a LEGO MMOG late next year.