I've been struggling and struggling to set up the Google Checkout module, and am having even worse luck getting anyone on that particular thread to answer me... feel like I'm completely stuck.

I set everything up according to directions... then went to run a transaction in sandbox mode using https:, and the transaction went through, showed up in my Google checkout account... but right after the order processed I tried to click on the download link for the product... and got this message. "Oops, your session has expired".

I can't for the life of me figure out what it is.

Anyone had the same issue before?

Thanks for any help on this frustrating issue.