A bit of explanation is in order here.
Normally, once you set up your products in E-junkie Seller Admin, we provide you with ready-made HTML codes for your cart buttons. You would simply copy the codes from us and paste them into the HTML source of your own Web site pages, wherever you want our buttons to appear among your own layout, text and images. Most sellers who use E-junkie simply do this, and thus they would have little need or use for listing products in an E-junkie Shop on our site as well.
However, if you don't have your own Web site or don't wish to paste our buttons into your site, you have the option of posting product listings to your own E-junkie Shop page on our site, listing your products at a specific URL where you can send buyers (http://www.e-junkie.com/37 for example). This help page explains more about posting product listings to your optional E-junkie Shop (including where you can define categories for the product listings in your own Shop):
http://www.e-junkie.com/ej/help.promote.htm
Once you start your paid subscription for E-junkie, product listings from your E-junkie Shop will also appear in the general E-junkie Marketplace (under the Shop tab of our site). Each seller can define their own categories for product listings in their own Shop, but the general Marketplace does not have categories. The general E-junkie Marketplace primarily just provides a way for search engines like Google to find your products, if you don't have a site of your own that they would normally find otherwise.
Bear in mind that the E-junkie Marketplace is not a major shopping destination site like eBay or Amazon, so buyers don't really come to our Marketplace and just browse around looking for things to buy. Most sales in Marketplace happen because of search sites like Google sending buyers directly to a specific product page, or because the seller's own advertising and online marketing sent buyers directly to their own E-junkie Shop or product page.