oscommerce design (basic) that can also be used for ebay?

experienced oscommerce and website graphics assistance; want to have a consistent website presence, for both oscommerce (own website/hosting) and ebay listings (if possible) something basic, but nice, clean, fresh and professional in appearance - open to proposals colors desired are: white, bright blue and bright green (links, buttons, graphics, etc) - even open to simple css or stylesheet changes to meet color needs. nothing fancy, nothing extreme, even taking standard oscommerce install and making the standard graphics/images meet color scheme changes is also acceptable would need assistance installing/applying these graphics into the oscommerce website too afterwards - ensure all is working correctly when done. would like to use same colors/graphics (again, simple/basic) on ebay too if possible would need basic training (on whatever is used to make theme) - images, where do they go, etc. - stylesheets, how to adjust, etc. - basic low level assistance