My guess: the actual expiry date is Expiration Date:09-Sep-2007
When a name expires it is usually provisionally renewed at the registry for another year but if owner doesn't renew the registrar can still drop the name and get a refund within 45 days...
If you check the name using domaintools for example registry data should show
Expiration Date:09-Sep-2008
and registrar data should show
Expiration Date:09-Sep-2007
It can be confusing to see the discrepancies between the two expiry dates, of course it's the registry data that prevails.
I assume it's a .com/.net