ubercart help required

Hello all,
I am trying to set up a minisite. I will be selling files/media on this website. I have setup drupal and other necessary stuff. I have installed ubercart and its required modules. I have a very simple requirement. I want to setup the file download functionality, along with paypal setup. kindly help me in two things

1) I have five pages, with each page leading to a different media download. Kindly help me how i can i use ubercart to achieve this task (a brief guide will be appreciated)
2) How can i enter my paypal information so that when the user pays, the payment is collected to my account........or what is the general idea i mean how is the payment handles so that the payment is sent to me.

Thanks