visual basic in bo 4.1

There is visual basic dataprovider in bussiness objects 6.5(old version) which i need to implement the same in sap bo 4.1.

How can do get the same in sap bo4.1 webi reports. If bo4.1 doest supprot visual basic then how can i create the data provide instead of that. I dont know visual basic atleast to understand what code they have written.

Please help me how to approach the solution.

Thank you in Advance.

with regards,

Prasad.