I am not a database guru and I need to be able to upload several products and attributes (images, sizes, descriptions, price, etc. ) to the correct categories in an art print and poster store without having to do so one at a time.

Can you recommend an interface or mod that will help a novice to do that?

ZenCart v. 1.3.8 latest
CSS customized
Added Google Analytics and UPS Shipping
URL: http://artbeautiful.com

Jack