Did you just volunteer for new server admin?
Renting a server is not cheap, at least the one we had wasn't. That's why we had to take it down, because we couldn't afford it anymore, and our server admin went away.
Backups of the old stuff exist. I know GonoszTopi has been working on getting the server back up, but not how far he came and where and why he got stuck.
Forum software at forumer can't be changed. It's not a free root server, just a free forum software.