WINDOWS 7 PC LOCAL ADMIN DISABLED, DOMAIN COMPUTER ACCOUNT DELETED

Hello EE,

Here's the situation:

I have one Windows 7 Professional PC that has the local Administrator account disabled.

Initially, I added a new Windows XP client to the domain and inadvertently assigned the same computer name to the XP client that the Windows 7 client already had (OFFICE-PC2).

Active Directory accepted my request to add the new XP client and allowed the computer account of OFFICE-PC2 to be assigned to the XP client.

Once I logged into the XP client using my domain credentials, I was notified that there was a duplicate name on the domain.  

In my haste, I deleted OFFICE-PC2's computer account from Active Directory and reassigned a new name for the XP client of OFFICE-PC3.

The original Windows 7 PC that had the original computer account name of OFFICE-PC2 is now orphaned.  It was not removed from the domain properly and will no longer allow me to log into the client.  

The local Administrator account is disabled.

I manually created a new computer account in Active Directory called OFFICE-PC2.  

Is there any way to reestablish the link between the orphaned Windows 7 PC (OFFICE-PC2) and Active Directory?

I've booted from my rescue CD and went into the CMD window and tried to enable the admin account by typing the following:

net user administrator /active:yes

It indicated that the command completed successfully.  Now when I try to log in I receive the following error (using a domain account):

The trust relationship between this workstation and the primary domain failed.

Any suggestions would be appreciated.