|Not sure which way to go. Generally deleting an admin with no other is very bad.|
Why not start with booting to safe mode and see if there is an administrator name to select or input? Should be the same password as the old administrator. I assume you mean you deleted a user that was an administrator.
Deleting an account and deleting the files are two parts to this.
Some live cds might be used to boot into a restore point. BartsPE and UBCD4win might work if you can build one.
Hang up and live.