update businnes logic to Nav 2009

Hi,

I have update our DB from Navision 5 to Navision 2009 recently. The conversion of the Database has worked wonderfully. We could open in all Nav 5 DB's now with the Nav 2009 client. The problem what i have is that the business logic behind it is unfortunately not updated. Partially the functions of Client 2009 can not use because the business logic and thus code is missing. Is it possible that i can update the bunisses logic to Nav 2009 Client ?

Thx for your reply.

regards

zero1de