Willing,
Do this for peace of mind. Then at least if you get hosed up then you have something to fall back on.
Close you board via the control panel.
Make a backup of your database.
Use a ftp program and make a backup of your site.
Then proceed with the upgrade.
After the upgrade is complete.
Login to the forum as a admin because you can still see it as such.
If it looks okay then goto your ubb control panel and open the board.
If something appears to be hosed then upload your database and file backups and restore it to what it was before.
It really is simple and should not take that long.
