Is your problem with uploading?
Do you use the Standard or the Basic Uploader? I find the Standard works best for me with Firefox.
Is your problem with ordering?
It does help if you upload in the order you plan to use, but sometimes that picture looks worse than expected. There are little arrows beneath each picture on the Sell Your Item page. These move the pictures back and forth. They don't keep moving across you have to move each one manually.
