Thank you for the information. We understand the first part: You have an error dialog in your BidSlammer account that says "Authorization Required," and then you log into eBay, which returns you to our site.
What is the exact error message that you receive at that step? We need the exact error message, please. The best case is if you can cut and paste the message.
We regret any delay in getting you going, but we'll have you up and running very soon. :-)
bidslammer