@wicker care to show us some of your top notch work?
The main thing you have to do is look at the competition, learn from them. Then create something and refine.
I have heard too many horror stories and bugs with wp-ecommerce, I would never use it. I use woocommerce and like it.
Email me through my profile page and I will take a look if you like.
It allows for custom sidebars that can be specified along with page, blog, and footer sidebars. I have tried setting a custom sidebar as well as using page and blog choices on the edit page but it none show up. All the other pages are set up with a “page” sidebar.
This was posted months ago and no they aren’t giving it away for free.
I use curdbee and it should tick all of your boxes.
Looks fine to me. Have you fixed it?