Well, I've put it off for a few months, but it needs to be done so...
I'm going to upgrade our backend code from version 2.04 to 2.0.6
The new code will address many bugs, security vulnerabilites, etc.
Since the site has so many hacks and modifications installed I'll have to manually change each file one by one so we don't loose them. I've taken a full backup of the site, and will make all changes off-line, then will upload the new files.
Will post a message when it's finished.