I have been looking for a cheap edition of Office 2008 Student and Home edition. I keep seeing people selling it saying that there are two licenses left. It comes with three licenses. What is going on here? Is this piracy? I assume if someone installs one license they can not sell it without uninstalling it. If I buy this, can I still install it on up to three computers? Who owns the licenses? One ad says: microsoft office 2008 for macintosh includes word, excel, powerpoint, entourage, and messenger COMES WITH 2 LICENSES! Another ad says: (First Product Key was already used. I don't know if you can still use it, because i returned the laptop I installed it into back to the Apple Store and it was already installed... so i kinda lost my money there.) No matter what though, the Second and Third Key Product Codes should work perfectly.