Fairly Simple Magneto Fixes

I need someone to fix a problem I am having with a Magento store I do not believe this is a big problem, more of a code fix than anything else. 1. The site is [login to view URL] The Fixes needed, a) The customer Log in link is not appearing and when a customer tries to go th that link from an order e mail they get a blank center screen see example here. [login to view URL] b) The wishlist link is not working either wherever it is clicked be it on the Navigation menu or on the website or product does not add to wishlist. c) I need a new link added to the horizontal nav bar I need it to the right of the Home button next to it it must read Contest, link will be supplied to awarded freelancer. The database is all in tact, I do not know what caused these issue's, This is a very high volume $$ web site, I cannot afford for the site to be down or reporting error massages during business hours, this will need to be worked on between 6pm EST and 6AM EST USA. I need a competent Magento expert that can make this happen quickly and for a good price, I need this fixes done quickly by a pro I have been let down twice on this already and I need a guarantee that you can fix. I will pay 50% up front the rest in Escrow till the job is completed. This is one of many jobs I need done and If I can find someone whom is timley and delivers when they say they will and is competent we could have more work for you. Please give me details on timeframe and references via PM. Best wishes to all. Ryan Construct Media