need support and help for existing lemonstand commerce site

We're looking for someone who can help us finish our website. There are still several glitches - like our email sign up doesn't work, and need help fixing some aspects of our online store. For example ways to change product prices quickly for a large number of similar products with the same price We also want to add an affiliate program. Looking for someone who can help with long term general support as needed for the website. We would like to first hire someone to fix our newsletter sign up problems, enable commenting on our blog (which doesn't seem to work) and then set up an affiliate program, such as this one ([login to view URL]) If all is done quickly, efficiently, effectively and we think you're awesome than we will hire you to rework our online store for easy price group updating, as well as regular monthly site support, to be discussed. We're willing to discuss payment method - hourly or fixed.