This install has gone well and it's certainly better than the beta 2 but I've still found a couple of annoying points.
The sound doesn't work with the SigmaTel-C driver loaded from the internet. On my Dell Latitude D610 I could only get the right hand speaker to go. Using the Dell AC97 driver for Windows XP resolved that problem.
Secondly, I couldn't get the (unsupported) Microsoft Control panel applet for mounting ISO images to work. Not a problem use Virtual CloneDrive from http://www.slysoft.com/en/download.html. This works a treat and it's freeware.