First bear in mind E-junkie is not a payment processor, so we do not handle any actual payment funds at any point. Buyers would pay directly into your chosen payment processor account, such as PayPal. In order to use our shopping cart and other features, you would need to have an account with at least one or more of the independent payment services we support:
http://www.e-junkie.com/ej/help.payment.processors.htm
We don't provide Web site design or hosting, so that would be up to you to arrange separately. 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. Our standard cart would appear as an overlay "inside" your own page, fitting within your site's existing layout and branding.
If you are selling a file download, you would simply upload that file to our server when adding the download product in your E-junkie Seller Admin. This help page explains our download delivery feature in more detail:
http://www.e-junkie.com/ej/help.file-downloads.htm
If you also need to issue buyers a serial code for your software, you can do that using our Send Stored Codes or Send Generated Codes features:
http://www.e-junkie.com/ej/help.selling-codes.htm
http://www.e-junkie.com/ej/help.keygen.htm
After the buyer finishes checkout, and once the payment processor notifies us they have completed the buyer's payment, we grant the buyer access to a thank-you page we generate for their transaction, where we would automatically present their unique download link(s). We also send the buyer a thank-you email message with their serial code (if you'd set up that feature) along with a link to reach their thank-you/download page in case they did not proceed there after checkout. Every download link we issue expires after the number of Attempts or Hours (whichever comes first) that you specify in each product's settings.
Our system is designed to be really quite straightforward to configure and set up, and you have a fully-functional 7-day free trial period which begins as soon as you register for an E-junkie login. Our Getting Started help page is a good place to begin setting up your E-junkie service:
http://www.e-junkie.com/ej/help.sell.htm