Basically you're taking out a = sign that shouldn't be there. Thanks for alerting me on this. As far as deleting a cat, if you really need to delete it and there are no links in that category, you can use phpmyadmin to delete the category. If you have links in it and want to keep them, you'll need to edit the links from the admin to change their category, then delete the cat via phpmyadmin. Otherwise, you'll leave orphan links in the database.
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.