I made an addon that adds a total of all of your auction's buyouts to the Auction panel and got it working 100%. I closed WoW and went back later to take a screen shot of it after uploading it but the frame is acting very strangely. Instead of being anchored to the left of the "Cancel Auction" button, it is about 100 pixels above where it should be. I also notice I can drag the auction house window around and don't remember being able to before. When I drag the whole AH, my frame moves left and right with it but stays in the same Y position. It still acts the same way when I anchor it to a different spot.
Link to the addon
http://static.curseforge.net/uploads...ctionValue.zip
Original vs. messed up location
http://hdimage.org/images/yezmzv0u42...ay_problem.jpg