joomla 1.5 modification in web shop

1. Enable a direct conversation with me (live support) tru website 2. some modifications by ordering products 3. get a module that will provide me these data: when a costumer logs in the website I will see who is online (only for registred users) 4. some modification in pricelist (exampel price 0,666666666) [login to view URL] Social media: Facebok like at each product, g+ pinternest and twitter to add these in website. So people could like products on website. 6.I would like that our pictures are displayed in google images search. and some some 2 or 3 other modification. Waiting for offers. Regards++ Gregor