Citrix 4.5 Publishing on ISA 2006

Publish the following on ISA 2006
Web Server (port 80), Publish 1494 inbound & 2598 inbound on ISA.

Set alternate address as below from CMD prompt
altaddr /server:citrix /set internal IP
altaddr /server:citrix internal IP /set external IP

On Citrix Access Management Console, Web Interface, web site-> Manage secure client access -> Edit DMZ Setting, set to default to Alternate.