Exactly what I was going to say.  If you go to 
your own auction and click on "view sellers other 
items" just copy and paste the following:
"http://cgi6.ebay.com/ws/eBayISAPI.dll?
ViewSellersOtherItems&userid=aiongdchld"

Don't worry about the stuff after your userid- 
you don't need it.  This does fit on the URL line-
 people need to stop posting item urls though 
because they are too long.