Is there a way to edit or delete old posts? I know you can edit a new post, but I'm interested in posts several months old.

I think users can edit their own posts for up to 24 hours after posting and can delete a post up to 60 minutes after posting.

This is done to preserve threads, otherwise there wouldn't be much use in archiving them indefinitely for future reference.

Administrators can edit and delete posts at any time though, so if someone has an issue with a post of their own, just PM me.