Just make sure to backup all changed files and your database so you can restore your board and posts to original condition if things go bad for you. Also, make sure you close your board first to help make things go as smoothly as possible.
Donate to UBBDev today to help aid in Operational, Server and Script Maintenance, and Development costs.
Please also see our parent organization VNC Web Services if you're in the need of a new UBB.threads Install or Upgrade, Site/Server Migrations, or Security and Coding Services.