on the gallery?
Here at Ao in the gallery click at the top link go to the category you are going to have the topic about(i think there is a scans section)
Go to the section at the right hand corner you should see upload photos
then fill out your pic info and browse your pic submit and you are done^^
I hope you are talking about this one b/c you did not state if this AO Gallery or your computer scanner i can help you with that too^^