PHP programmer needed

I need a experienced php programmer for work on a variety of websites, all php / html based. To help complete various tasks that we are behind on. Work will be based on an amount of time. We'd like 30 hours per week for 4 weeks, and as many tasks that can be assigned and completed within that amount of time. At the end of the 4 weeks, with both us and you feeling the work was completed satisfactorily, we can look at opening a new project and continuing on that same basis. Websites include: Ecommerce based (Creloaded , magento) CMS - Content Management System based (joomla, seagull php framework, etc) Work can include anytinhg from adjusting current websites, to creating new websites based on our graphic design. Please send samples of work and experience in php. Particularily CMS and ecoommerce.