Oscommerce Programmers Required

Hi, im looking for a partner who knows ALOT about PHP and oscommerce this will be a fulltime job. At the moment i have 4 domain names i need to put oscommerce on for starters but i need to put it on 45 to 50 domain names. I will upload oscommerce on every domain name to make it easier for the other person all i need is someone who knows about oscommerce to do a few changes to the site for me. Please note all the sites will be a different design and colors. I need someone who i can email and they will email straight back not 2 days later. This will be a ongoing requirement not just a one off so please keep that in mind when bidding. The job i need doing should not take anymore then 2 hours to do all i need is a banner and the front page changed alittle and new buttons added on every project. I have one site i need doing right now and another one when u are finished that one and so on and so on. The price has to be per project and im looking at doing 50 off these sites and i want to finish them with in 2 to 4 months so the work will be on going then i want to do another 40 or 50 more. I want to have a good relationship with the programmer i choose. I dont want people advertising the work they have did i want the sites like i show u how i want them done. The work will include some other websites to be changed as well not just oscommerce but 70% off it is oscommerce. Please PM for some sites i want it to be like and if you cant do the project dont waste my time in bidding. The first 2 or 3 projects you will be paid when you finish and the rest you will be paid when i get paid from selling the sites if you dont agree to that then please dont bid on this.