My Pure CSS Tabs with ASP.NET 2.0 Master Pages post also apeared over on CSharpZealot.com where I just added a note about an alternate solution.  Copied here for completeness :)

There was an alternate solution using the CSS Friendly Control Adaptor toolkit for ASPNet 2.0 which renders the standard menu control as UL\LI tags rather than as tables

I chose to not go that route because I don't need the tabs to link to a sitemap datasource or anything cool like that - UL\LI in a master page was plenty good enough for me, however if you did want/need to link the same code to a sitemap then the CSS Friendly adaptors would be well worth looking into.

Listening to:  Wave of Mutilation: The Best of Pixies