http://www.polycount.com/forum/showthread.php?t=105380 Grab this script, has a bunch of useful features, but namely a script to snap/align shells to one another. Also since you can't actually move anything in UV space in anything but UV component mode, once you convert any type of selection to UVs you will be able to see…
ya never found the digital tutors stuff that great, better off just using the help docs. also the maya UV editor isn't that bad, it just takes a little getting used to, i prefer the maya one + a few scripts and my own customizations over the max one.