iTunes Plus not allowing upgrades yet?
As an example: I pre-ordered and downloaded "Pocket Symphony" by AIR last month. When I visit its iTunes page, it's flagged as "iTunes Plus". However, its songs all cost .99USD and don't have the 'plus' icon, and there's nothing on the page allowing me to upgrade my existing album to the iTunes Plus version.
How do I upgrade my songs?
MacBook Pro, 15", Mac OS X (10.4.9), iTunes 7.2