You waited a whole hour for a response? And in the middle of the night for most US residents, no less? I'll tell you what another forum member once said:
you should have paid the 2$ entry fee for fast help.lol
Well, if you want to change firewalls, that is up to you. But you cannot run 2 firewalls at once. If you want to use "Geswall", you will need to disable Comodo's firewall. Personally, I would just stick with Comodo...I've never heard of this "Geswall".