I upgraded New Sense from WordPress 1.6 to WordPress 2.0.  The upgrade was smoother than I expected.  Just uploaded the files and then ran the Upgrade.php file which asked me to click on a link and I was done :).

In case you plan to do the same to your site, one small advice change your theme to default before doing anything it will make sure ur blog loads properly.  The plugins and all can be sorted out later :P.

The only plugin that did not work was the Wp-polls plugin.  Guess I can live without it for now :P.

PS: I totally love the Admin frontend for the new WordPress.

WordPress Rocks :)