migrate printers from NT4 server

I’m trying to migrate printers from NT4 server to Server 2003 by using Printer Migrator 3.1.
During restore process on 2003 I stuck with error :
“Kernel Mode drivers (version 2) are blocked on the target machine. Disable Kernel Mode driver blocking and re-run Printer Migrator”.

Davis,
http://www.my-credit-cards.co.uk/

Have anybody come accross this problem?