Become a MacRumors Supporter for $50/year with no ads, ability to filter front page stories, and private forums.
You can't, at least I haven't found a way. This is the only feature I'm desperate for Apple to implement.
 
In iTunes, click the 'Album' column twice, this should change the sorting to sort by Album Artist and then by Year. At least that's how it works on my Mac.

Wow, thanks so much :D I don't understand why they didn't make this feature more obvious.
 
Register on MacRumors! This sidebar will go away, and you'll see fewer ads.