Blog username and password don’t work, WP doesn’t remember email

Not sure I’m posting this in the correct section…

I recently moved my blog to a new server (it was an old version of WP) and the password and username no longer work. I tried retrieving my password, but the username/email don’t match. Also, the blog exists, but I can’t access any of my posts (they can’t be found). I’ve moved many other blogs to new servers and haven’t had this problem before.

Just want to know who I can ask to retrieve my username and password and if it’s possible.

Thanks