Problem with Bing Cashback

I've been working with Bing/Microsoft support to get my site integrated with Bing Cashback.  According to the latest test results the Shop By Product tracking is working correctly (the links provided by the datafeed export are good).  However the Shop By Store URL is not working.   The URL I tried using for the homepage is: http://www.treklightgear.com/catalog/pc/home.asp?cashback=yes

Can anyone tell me what the correct URL/parameter should be so it will work correctly?  Bing can't provide any additional assistance and everything seems to be working correctly except for this URL.

Thanks Matt, but I already searched and found that post.  As you can see from my post above, I've already tried using the home.asp?cashback=yes that was recommended in that post but it's not working and fails Bing's integration tests.  Everything else is setup and working properly with Bing integration based on my datafeed so I'm guessing that parameter is either wrong or there's something wrong with my site that's preventing it from working.  

Is there anyone out there that is successfully using Bing with the home.asp?cashback=yes parameter? 

If you are sure the URL you saved at Bing is the same one you typed above, and it has been updated in their system, then please open a ticket.