I have to agree with what is being said Daisy May.
You *might* want to take a look at CRELoaded.
It uses the osCommerce "core" with more that 70 user add ons or "mods" added to increase functionality.
www.creloaded.com and since it is my favorite design program, I also have a fair bit of info about it on my site.
You really do not have to know PHP/MySQL to use it as all the admin is done in text (or html) entry fields.
Reg