Newsletter / Advertiser interface Creation

I want to have a newsletter interface created that allows advertisers to upload their banners and purchase ad spaces themselves. The newsletter will have a back end that will allow me to create the content that will go out in the emailed newsletter, a banner ad upload and storage area for advertisers, a newsletter " upcoming issues" area, and automatic banner insertion feature, advertiser interface. An example of what I want is here at Entireweb.com. [login to view URL] Create an account and log in to look around. This is it.