Vendor Setup with PayPal Adaptive plus questions

racedvd.com.au

I am very confused as to how to set up my vendors with paypal adaptive (and my side).

My vendors will each have 1 or two products maximum that I will set up (I think this will be the easiest so far).

Q1) How do I assign / create products for a particular vendor within a general category? Example: The category may be Thoroughbred / Queensland / Brisbane (which may have a few different products from various vendors).

Q2) I just want to charge / take a simple and standard $5 fee (from the vendor) per sale from every product sold on the website and wish to use paypal adaptive. Very confused as to how to set this up.

Q3) This one is something more for the future -- But is there a way to be able to limit what the vedor can adjust from the contol centre / during signup? Example: I want the vendor to be able to sign themselves up with specific information only, like this page: www.racedvd.com.au/index.php/provider-login Then once they are approved, the products are created automatically using a specific product template to make it look like this: www.racedvd.com.au/index.php/categories/...ard-race-dvd-product Lastly I want the vendor to be able to ONLY change basic information, like product description and price. And possibly the postage price. But that is ALL. Is this possible?

Thank you for your time on this