You can modify the look of your ubb, including this graphic, by editing your style template in your control panel. Upload your grpahic to replace the standard one to your ubb non-cgi directory and type it's name in the appropriate box in your style template page.
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.