E-sourcing setup

Hi,

We need to setup e-sourcing environment.

As of now it seems only 5.0 version is general available and 5.1 is still under rampup.(Pls correct me if I am wrong)

If I have to go with E-sourcing 5.0 on windows, can I do this with NW04s?

If not what is the suggested landscape, mainly combination of OS and Application platform?

Thanks in advance for your help !

Regards

Ravindra