Hello Debi:

The Store module already stores all of it's product information within the DotNetNuke database (typically SQL Express). Maybe your question would be better put: how can I synchronize my product information with another database?

I would be happy to answer any further questions you have via email to answer question C.

I would suggest you do things to optimize the page size: when using DNN4, you can specify to place the "Page State Persistance" in memory instead of default in the page (if you are using a hosted DNN account and don't have access to the host account, then you can't change this setting), and turning on the 'Whitespace Filter.' Also explore the other compression settings: these will help the page load faster in your client's web browser. I still think the only way to manage the store module will be using the store module's admin interface, you will be biting off more than you can chew if you try to tread untrod ground.