Forgive me for the (almost) duplicate post, but hopefully a different subject line will attract the right audience for my question.
Has anybody successfully integrated Google Website Optimizer? I've tried, and it adds a querystring param (key = "utm_referrer"), which confuses AC's URL rewriter. (e.g., /Prod-P24C21.aspx?utm_referrer=http%3A%2F%2fMySite.com/Cat-C21.aspx causes the Category page to appear instead of the Product page.)
Surely, somebody out there has done this. I attempted to execute a Server.Transfer in the Application_BeginRequest event handler to remove the querystring param from the URL, but that was too late in the event chain. (It had already rewritten to CategoryGrid2.aspx?CategoryId=21.)
Ideas?