Build a Website

Currently I have a website that needs simply updating www.zyrah.com. I have put together how the website should look and operate so makes your job a lot easier. The idea of the functionality of the website is explained in my own instructions comes from a theme that was created by a developer on HTML but wanted it all wordpress operated. Because as I was told is great for SEO. The Website needs to be able for me to edit and adjust in the back end easily so i do not need to keep in bugging you all the time to make the fixtures. Importantly I require to not lose the currently SEO i built on ti for over a year now and to improve the SEO or in any tips needs to be put in place so the website is SEO compliant. I would like to change my blog appearance and change to a domain [login to view URL] if possible or [login to view URL] Also i am need of a client hub that clients can log in with passwords to view their contents and download them.