Advanced PHP/MySQL Developer Needed!

I currently have a Joovili-based community site with several custom 'mods' installed. One of these mods include a 'Points Shop' where members can purchase items from the shop using points they accumulate by referring their friends to the community. Right now they earn points by sending invites via email. I'd like the members to also have the option of posting a link to refer their friends to the community, much like an affiliate program, instead of strictly sending invite via email. In addition, I'd like an Email Importer installed that will allow members to import their address books from Hotmail, Y!, GMail, etc for additional referrals. This is only one part of this project, as I have an entire list of projects and work I need done for this site before I can launch it to the public. I also have another list of work to be completed shortly after launch, and several other similar projects to start after this one is complete. In short, I have several months of work available, starting with this first project. I'd prefer to work with only one person to get this done, rather than several different people. I prefer someone that is experienced with Joovili, but this is not required. I'd like to see 5-10 projects you've worked on or completed that required PHP/MySQL skillsets, along with what worked you performed on the project.