GP Business portal 5.1 installation error "your back office data must be at version 11.0."

I am trying to install GP bp 5.1 sp3 (64 bit) on a server where :

OS Windows Server 2008 R2 64 bit

SharePoint 2010 Professional

SQL server 2008

GP 10.0

I already installed SharePoint and created site and site collection. Upon installing BP I get the following message.

The database (DYNAMICS) on SQL Server (myservername) does not meet minimum requirements--your back office data must be at version 11.0.

I am new in such things so please help me and I will appriciate someone send me step by step intallation for the above environment.