David, I'm still having some trouble with this module:  I just made a purchase, but had an incorrect CC number so received an error.  I fixed the number and re-submitted the purchase, it worked the 2nd time.  When I go to the accounts module there is only one item listed, and it's status is "Cancelled".  Looking at the database, I can see that two users have been created in the Smith_Customer table referencing the same DNNLogin.  (In fact, there are numerous duplicate DNNLogins in this table).  I presume information is only being reported for one of these users.
 
Thanks,
Walter