In updating my post plugins to work with WordPress 2.3 I managed to break various things too. Versions 2.3.2, just posted, fix a bad interaction between tags and categories and correct issues with excluded categories.
I might be able to extend the plugins to do something useful with tags now that I understand them a little better.
father rob, is wp 2.3.2 in beta? i ask because i don’t see it on the main download page.
I doubt it Tin. But my plugins are at version 2.3.3.