BO 4.0 Migration

Hi Folks,

We have created some Dashboards with Query browser option on top of universe created on BO 4.0 SP06.

Now my problem is,

Can i Deploy(Migrate) and run all these dashboards in BO 4.0 SP04 Environment ? If Not, Anyone please suggest me how to get all these stuff in SP04.

Does Business Objects supports backward compatibility..?

Thanks,

Vinod Kumar A.