The main purpose for this tab is to keep track of everything bought, sold & unsuccessfully auctioned. The interface should be like a big list of items, with a header on top of it.

The header should show the information of any item that is clicked in the list, or if an item is dragged into it.
Information in the header should be similar to the one I suggested in the posting interface (the other ticket I opened), plus detailed historic data.

The list should only contain items that we bought, sold or unsuccessfully auctioned, NOT our bag items. We can, however drag one of our bag items in order to get the historic info for that item. (Which would be empty if we have never done anything with it).
We should be able to sort the list by item name, rarity, transaction date (newest/oldest), if it's currently in our bags, most successful/unsuccessful auctions, highest/lowest priced, highest/lowest profit...

Columns in the list should be configured in the config (if the user wants more or less columns it's up to him...), but basically hte columns would be like:
Item Name, Last Transaction Date, Bought, Sold, Unsuccessful, Availability, Price, Profit

Each item should store information like:
- Number of auctions bought/sold/unsuccesful
- Bid/Buyout/Date/Type for every AH transaction (Example: 6s/12s/12 Jan 2009/Buy or 12s/24s/13 Jan 2009/Sell)

I think with that data we can figure out high, low, averages, number of auctions, profits...