Did you mean that the software was UNINSTALLED on the old pc?

If yes, you might want to call MS and explain what happened and that you need to
reactivate your copy of Office on another pc.

http://office.microsoft.com/en-us/as...187761033.aspx
Activate or register programs in the Microsoft Office System

Reinstallation User wrote:

I have purchased a new PC and want to install software had used on my old PC.
The instalation wizard displays the message current installed on another PC.
The software was installed and the PC donated to charity. Please advise how
I can now install my MS Office suite products on my new PC.

--

Dave Peterson