VP ASP Intergration/Support

Feature Request: Please include VP ASP shopping cart support in this module. eg: VP-ASP DELUXE 6.50.0.a

I have a client who has a highly sucessful site in operation. They do not want to risk their sucess by changing shopping cart software. They sorely need to have major design redevelopment, however. I've searched high and low to see if there is a VP ASP shopping cart module for drupal out there, however osCommerce is the closest module I can find, and the oscommerce product is similar, but seems to lack batch price list uploads. Unfortunately I am not a programmer (Just a mere CMS administrator) but would appreciate any feedback or assistance intergrating the two products in the same fashion as (or even within the) the OScommerce module.

Requirements:
- The ability to see VP ASP products.
- Integration of VP ASP price list batch uploading (CSV batch uploading).
- Ability to navigate products, shopping cart and checkout features from within any standard drupal theme.

For reference, they're running VP-ASP DELUXE 6.50.0.a (#23410) http://www.vpasp.com/ with an SQL back end. Unfortunately it is not a very versatile product. I have seen this: http://drupal.org/node/239184 but I understand it only allows navigation to pages outside drupal, rather than intergrating the product database with Drupal itself.