i just tried it (don't tell my boss)
i downloaded the vector image i wanted
went to cafepress, go to design your own (on the right) and pick t-shirts
change to tank top (or whatever)
click graphics (on right) and click upload image, selected the vector i downloaded, this took several minutes to load (several steps)
change size if required and click finish, then it comes up with the price and you can select size and qty.
if yer ordering white or lt gray make sure you select the graphic with the black "2014" on the top
sorry we could not get this in the store, Laurie is tied up with some stuff till next week and cant work on it