Hello fellow WordPress users and admins!
Everybody using Top Level Categories plugin and who has updated to WordPress 3.1 knows, that Top Level Categories breaks WordPress 3.1. Since TLC hasn't been updated in 3 years and sites are down, we decided to do something about it.
Here's a new version of the plugin: FV Top Level Categories
Please let us know on our plugin page if you notice any issues, so we can fix them.