Howdy Randy,
I'm not trying to answer your questions, I'll let Evan or Ken give some insight, but I know it's really a PITA to do. the biggest problem is trying to get some of the history transferred over into new one.
Some options are:
1. Use an outside gallery as sort of a home base, upload photos there and then do the tag
and you can post them just about anywhere. I do this as it's the easiest, but you need to set up a "Photo base". Then just RT Click on the photo and "Copy image URL" and past between the tags like this one:
Tag is: [img] link
Another option the Admins might consider is adding a "Photo Gallery" 'Coppermine' just comes to mind and is free and then just add a menu link to it. (It's also dependent upon the website's Host)
Then when you post your pics in the "Gallery" you and post a link to the ones you've posted...
Anyway, to move the complete forum, posts and all history if possible at all, probably can't, would be a huge job. The other option would be start all over again and that's probably not going to work either...
Hope that helps explain it. These things are hard to adjust once up.
cheers..