SEO and general overhaul of a creloaded 6.2 pro 13.1 (SP1) installation

Background: Having moved from bespoke solution and patched OsCommerce sites we are now maintaining a Creloaded 6.2 Pro 13.1 version with some add-ons including "Googlefeeder 120" and "ultimate ceo 2.1d". After applying the latest patches I find that some of the add-ons don't work any longer. Project: I require advise and development effort primarily to enhance web presence including search engine optimisation. I also require a general overhaul and advise on what can be done in terms of buying experience, performance and look&feel, including styles, images, audio and flash or animations. New functionality and changes to existing functionality must be technically documented both in source code and in separate text files. I will provide separate development and test environments and will undertake testing before any changes are released in live. Success criteria: Agreed changes to the existing site are successfully tested and then implemented in live environment. Cost structure: Both fixed price bids and T&M and mixed will be considered. Tender: If this very draft and high level request is of interest to you then please provide me with: -your contact details. -areas of expertise. -examples of previous relevant work. -references to previous or current customers. -typical daily rate. Many thanks for considering this work.