I have updated my gallery from YaPig (yet another picture image gallery) to Gallery2.
The main reason was comment spam. I disabled comments the hard way (by removing the comment page) but the system needed a newer better version.
You can find the new one here Steve’s Gallery. Don’t be too freaked out by the hand wound pictures, it has basically fully healed by now.
Gallery2 installed quite easily; The only “tricky” part was the database, and that was just recalling how to grant privileges to a new db user.