"And Kathy, that's not his site...It's cafepress.com where anyone can make their own merchandise to buy and sell. What you're seeing is standard as far as image size and can not be changed."
Oh - I thought he owned CafePress, lol! Guess it is like a mini eBay of t shirts and other artwork?
If I was that talented in art, I sure would get my own website one way or another - they are not that expensive. I would go to shows and sell them. If you can't afford to print up some shirts, maybe even do some air brush shirts at shows, or online. If you have to get a regular job and do the art part time, why not try to get a job in graphic arts (magaizine or silk screen shop) where you can maybe get a discount in printing some of your stuff to sell (nice side benefit!)?
Maybe it will take a while to get noticed, but with time and work, you should be able to eventually make a living at it. Most of us don't have that kind of talent to begin with, so you already have a head start.