Thanks!
You really helped me understand the problem.
I will try to work it from here..
Just to be clear, you don't have a solution for a situation of different PSCes right?
I think i will try to use this guide: Join a SAML Service Provider to the Identity Federation
Update:
Tried the guide in the link above.
I exported and imported the SAML xml file from vc_#1 to vc_#2 and the oposite and it's still not working...
Forgot to mention that psc_#1 defined as the authenticator of the VRO server..
Maybe i didn't understand the guide correctly?