Attrice has released a new version on their Sidekicks which you can now get here: (http://www.attrice.info/downloads).
In addition to bug fixes, there are two big features of note (more details at http://blogs.microsoft.co.il/blogs/tfsidekicks/archive/2008/04/08/get-team-foundation-sidekicks-2-1.aspx):
· Code review by work item selection
· Integration of Sidekicks into Visual Studio 2005/2008
· View changeset details wherever relevant
Lastly they now provide an undocumented ability to plug in your own Sidekick into VS/application. Send them an email if you want to learn more about it.
Eugene does a great job with these Sidekicks and the majority of the improvements are based on your feedback so if you get a chance check it out and see if there is something in there which your team might get use of.