CafePress Storeowner FAQ >
Is there a better way to organize my image basket?
Short answer: not really. Currently the image basket isn't particularly flexible; newest images appear at the top, and that's about it.
The best thing you can do is plan out your store beforehand, and add images in whatever order best suits you. (Hopefully CafePress will improve on the management side of the image basket sometime in the near future.)