Follow-on ?? to Cisco IOS ver and clfowd

Ok, I am blue in the face now... Is there a cisco release naming / feature expert in the house ??:) What version of IOS properly supports IP, BGP, NAT, ISL and NetFlow where ALL of this stuff works. I tried 11.1(18)CC it has the Netflow stuff but ISL is broken arggggg jmbrown@ihighway.net