Don't need much. Like someone mentioned make another area for traffic. Possibly a sign/tab that reads live auction happening now and the time counting down when it will be over. Pic of the actual piece, who's selling it etc...
You click on the yellow or red flashing tab and it gives you other tabs to click to make a bid through cc, or PayPal. After you placed your higher bid your bid is the top so the item now has your bid as high bid. Something like that.