I have the free version of the SSH client from www.ssh.com on a Laptop
running Vista. I'm trying to set up port forwarding, but as soon as I
try, Windows says

"SSH Secure Shell Client has stopped responding"

I am then presented with a button to close the program.

Has anyone got this client (version 3.2.9) working with port forwarding
under Vista?

I'm not sure if I'm doing it right though. I have clicked the
"Tunnelling" tab, then selected "Outgoing", then entered:

Listen port: 30110
Destination host: 192.168.1.15 (IP of a Sun on local network)
Destination port: 30110

I'm managing to do this with Putty, so I suspect its a bug in the client
from www.ssh.com, but I don't know. It was obviously written well
before Vista existed.