Correcting website code, and do search engines optimisation.

I need to clean the code of my website [login to view URL], the site is up and functionnal but seems to repell the browsers robots. it is bilingual site french and english +- 13 pages of each language. Some browsers prevent my website from showing and make virus alert. Trojan:JS/Redir, you will also need to solve that issue. Since last modifications of header and page names and description few month ago we lost the google ranking and can't even find the website with key words. So cleaning the code and putting it in order is ncecessary. Few 'free website analyisis' can help find the troubleshooting and errors to be fixed. You will have to do Search engine optimisation to put the website back on track. Coder has to visit the website, understand the problem before bidding. Coder has to be web programmer and know php, flash and java script Coder has to start and finish the job now.