I was just over on the discussion boards on ebay and there were some folks there having the same problem. I was just in "My ebay" and did not have a problem.
Now getting my store's traffic reports from Omniture....that is a whole 'nother story. Have not been able to access them in 2 days.
Hope things change for you soon! That must be a real pain to not have access to your account.
Marcia