I'm behind firewall and don;t have direct access to the server on that port.
However, I can forward connections from local host to destination by forwarding it through another open access machine !
But for that, I need to change update.guildsoftware.com to 127.0.0.1
Is it possible to change that, or is it hard-coded ?

Shane

Check your hosts file.
In *nix, it's /etc/hosts.
In Windows NT/2K/XP, it's in c:\(Windows Dir)\system32\drivers\etc

Just add a line looking something like this:

update.guildsoftware.com 127.0.0.1

You may or may not have to reboot.