configuring single sign-on between EP 6.0 and SRM 4.0/EBP 5.0

I am currently on a portal implementation project, and I need to configure single sign-on between the portal and the SRM server running live auction cockpit via ITS. I have gone through some documentation from sap.help, but i'd appreciate if anyone can give me o a document that describes the procedures for single sign-on between these systems, i have a tight deadline to meet.

thanks.