IDT in SAP BO 4.1 SP7 ... SAP Netweaver BW driver does not exist

Hi there,

I'm trying to create a Relational Connection based on SAP Netweaver BW, but when I try to select the driver the option is not there:

However, this step by step How to create a SAP BO Explorer Information space using a SAP BW Bex Query as a datasource

should be possible to select the BW driver:

Both pictures are from BO 4.1.

Could it be some installation problem? is something missing?

Thanks in advance,
Narciso Rodrigues