Since Firefox 3 is now official, I've made Webconverger 3 official. Try the latest 3.x webc-mini release.
I actually prefer the LiveUSB version. Download *.img and checkout the instructions for putting Webconverger on your USB stick. Boots in a minute on my Thinkpad X40!
There probably will be some bugs (also see todo) so please report them to the mailing list / forum or directly to me if you so wish. For the more technically inclined, see Iceweasel bugs and Mozilla's BTS.
Enjoy and congratulations to Mozilla on the historic bit of PR which is download day.