Look for the combat mission public executable file. Might be cm_public.exe. I think you run that and then to actually play on the internet do the start, run, c:\combatmissionpublicbeta.exe. I'm not real good with this stuff either (as you can tell). The executable file is different then the one you normally use to play combat mission. If you got version 1.05 to work your on the right track it's just finding the different publicbeta.exe command to use. good luck I hope this helps.