Drupal 6 Feeds Module User Import & Ubercart
After searching high and low I finally found a workable solution. 

Using user_import module in conjunction with this little custom module here I was able to import all of customer information from the old site.

It was exactly what I was wanting to do. All I had to do was match up the fields to my CSV file and I was able to get it all added in ot the appropriate uc_addresses tables.