I'm running WinXP for a second HG setup used only to monitor traffic for temporary debug use. On that system, I used the system tray icon to stop HG. I then opened a dos prompt and ran the following:
C:Program FilesHomeGenie>HomeGenie.exe > logmono.log
The result is a file (mono.log) that contains all traffic that HG sees. You may need to turn debug mode on (can't remember if it's needed too), but it will certainly output a bunch of stuff. If you leave off the redirection, the output will be to the console.