It's probably gonna be like a page where it will list all characters who have items for sale through the auction. Maybe columns that have the name of the item, picture of it, ID, character ID, how much the item is put on auction, and maybe how long ago it was put on auction.
Then maybe.. if so, if a player wants to purchase the item right off the auction page, the item is then removed from auction and placed into the characters storage or sent by mail to their character.
maybe it would also be nice if the auction will have its expiration date ,where the you can set how many days that certain auction will last then if no one will purchase it,it will be automatically removed from the auction page if it's expired...