Off hand no. I do know that it's in categories.tmpl also for the categories.php script. I cant think of any others. But, perhaps a global search in your templates directory to find them all would work.
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.