Web AS 6.40 with 4.6C backend

Hello,

I am trying to use MSS/ESS on the portal (EP 6.0 ) with 4.6C as backend.I do not know how to configure the ITS settings.Does the built-in ITS of Web AS 6.40 cater to the need of the ITS(or do i need a stand alone ITS) and if it does how would i configure it and how would i enable ITS transactions on 4.6C ?

I would much appreciate any help.

Thanks,

SAI