Bug Fix and Misc Webiste Updates

I am looking for help updating a few things on my site [login to view URL]: (1) There is a "create account" feature that does not work properly. It gives an error message when you try to create an account. (2) Delete "specials" link at the footer. Add in its place link titled "link share" which can be linked to an existing page (3) Delete "online support" incon in left margin (4) Add "newsletter" form in left margin below information links. A place where site visitors can put their email address to be added to a marketing list (5) Add SEO contribution. I have one now but it does not appear to be working properly.