Hi 1960srw,
The problem that was mentioned in this thread only lasted about 20 minutes so, since you have been unable to access Auctiva or Sellathon for such an extended period of time, I believe you are probably being affected by a different problem.
If you are still experiencing this problem, please file a support request using the appropriate link on our help page:
http://www.auctiva.com/free-auction-software-help/help.aspx
-Mike