I just went through a port change so I updated my quick update script to include the ability to change ports. See the last entry here:
http://forum.screenconne...uick-Update-Script.aspx

one thing to remember is first, connect to every machine and run the script, then change it on the server. If you do the server first, you will obviously have no way of changing the clients.

The script basically does the following:

1. gathers all information from current installation(ports,url,encryptionkey,etc)
2. generates new installer with this information(if you specified to change the porturl, then it plugs your specified port/url in)
3. uninstalls the current unattended installer
4. installs the new one

let me know if you have any other questions about it.