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