No Admin Account

I have deleted the admin account on my Mac Desktop. I was attempting to change the computers name (a complicated process). I was directed into Netinfo Manager, and I did something wrong. Their are now only two standard accounts on the computer. However, I can still access files that were previously in the admin account. I am far from being a Mac Genius......Can someone please help?? I googled and googled, and nothing as come to use.

Thank you.

At first it appears if you enable the "root" account it can be fixed. The problem is you can't enable the root account unless you do it from an admin account. Catch 22. Looks like you're going to have to re-install OS X. You can try an Archive and Re-install. See here:

General advice on performing an Archive and Install

Regards.