In July I did a quick screencast that showed how to slipstream IE8 into Windows Vista. If you did not see it take a look here: Screencast: Slipstream Internet Explorer (IE) 8 into Windows Vista.
One thing I did not show was some the basics on how to work with a ImageX .wim image. (i.e. mount/unmount and commit changes), well my buddy Chris Henley delivered another great screencast introducing some of those basics in ImageX. BTW in case your wondering, yes his razor broke. Check out his screencast below or take a look at his post here:ImageX Demo