MarketPress Product Upload

I would like to know how to create an Ebay with the Market Press do you have a step by step instruction.

2) Some customer already have a store do you have a way for me to port their store (products, customer information, sales etc.. with CSV…:wink:

3) Can I use it as an ecommerce service like 3dcart.com or volusion.com, where I am able to charge them per month and select how many product they can have for each plan, the more they upgrade the more feature they have and the more product they can add?