Ok.... here's the deal. I realize CafePress doesn't have the highest quality shirts. But I just want something cheap for now. I want to have tank top / girl belly shirts made for my DJ'ing business. My fiance and my buddies girlfriends are my table dancers.....and they attract the guys. So I want to get some advertising on them...

OK..my question. I have my design / logo on my business cards...which I also have scanned into my pc. When I try to put the logo onto the shirts...the biggest I can get is 4.25" ... how do I enlarge this.... or does my design have to start out larger???? -Matt