Hi, I'm looking for a deal non buying a version of Photoshop from 7.0 up on ebay. I've found a few and some of them show the box with the part number, or just specify this part number: what is this? Can I be sure that these would be legal copies of the software? Is there a way to check these part numbers? Some items (on ebay) from different sellers have different part numbers: is it possible? And a final question: would you trust buying photoshop on ebay with a stated part number? Thanks, hope somebody can help.