Recovering old site and it's content

Hello!
Thank you for your help!
I recently build a new site with the same domain name as an old site I have. the domain name is “willnotfear.com”

The old site was up for three years, acting my blog ,and I felt it was time to upgrade to a new design and expand the site from just a blog to something that would encompass all the work that I do.

In the process of upgrading and changing the DNS on mediaTemple and WordPress. the old site was lost and I am looking to recover it. and use it just as a blog, with a new URL that will link to the new all encompassing site.

so my questions are:
– Where do I find the old site? It was hosted on MediaTemple (I am sure of this hosting)

– How do I change that Domain so I can use it as a blog? I don’t feel like buying ANOTHER domain name. So I am cool having “wordpress” in the URL. (is that how it can work?)

I am unsure where the new site is hosted, I thought it was MT but when I was making this change I needed to change DNS’s in WordPress so this has me confused.

Thank you again!
Will