A bit of hacking on Felix’s tags plugin (version 0.3.0) has cleaned up the Sharepoint theme. I added a new parameter, “countposts” (default true), to the listtags() function. This controls the display of number of posts. The patch is here, just right-click and save locally or use your browser’s “view source” command.
This code could probably be much cleaner, but it gets the job done for me right now. Enjoy!