This works no matter who the seller is or how an item is listed on eBay.
The winning bidder in the eBay auction needs to get to that auction from a qualifying link on Oldgas.com as shown above -
"Here's how to help"
* Click on the links listed on the "Right Now on eBay" auctions shown at the top of the page of several forums here as well as on our Auctions page. Click on "Auctions" at the top of this page.
* Use the eBay search form shown at the bottom right of most Shop Talk forum pages.