migrate to new server hardware not working

I'm trying to migrate all my sites to a new server..i purchased new hardware and installed the SAME OS on the new box.. gave it a new IP and installed Virtualmin Pro.

Then on the old box i preformed a backup of all sites, chose the default options, and chose to FTP the SINGLE TAR file to the new server.

Then when i tried to do the restore i got the following errors:

Starting restore of 25 domains from local file /home/migrate/tmp/livesite-6-2008 ..

Extracting backup archive file ..
.. done

Re-creating virtual server mysite.com ..
Could not allocate virtual IP address from range

.. failed! See the progress output above for the reason why.

I have tired various backup/restore options but none seam to work..

what do I need to do to MOVE EVERYTHING to the new server and delete,trash the old server?

Status: 
Closed (fixed)