Here is the scenario: I need a way for several different wordpress themes to feed into the same shopping cart system. I am thinking about OSCommerce plugin. Here is the catch, I need each theme to appear off to itself. Lets say, I have three different themes. I need site visitors to access theme 1 using http://www.maincart.com/theme1, theme 2 using http://www.maincart.con/theme2 and theme 3 using http://www.maincart.com/theme3. One other caveat I forgot to mention: I need to narrow the items each theme displays to only the items that particular theme should be selling. Is this possible using wordpress? Any help would be greatly appreciated as this is mission-critical.