Changes to WordPress Theme

I am looking for someone to make the following changes to my business directory project, [login to view URL] 1. I need the ability to simply create sub domain copies of the main site. i.e. [login to view URL] 2. I need each site to be fed from one database connection so that updates and changes are shown across all sites. 3. Each affiliate link on each site will need to be identified when reported. i.e. [login to view URL];awinaffid=78178&clickref=[URL_REFERENCE]&p= 4. I want to add another field to each posting to show a voucher code if available.