"is apache web server running here by default? how can I stop it? my isp doesn't want it running either."
huh..pardon me, but what stupied ISP, doesnt let you run a such simple service such as a webserver?? I would have switched ISP direct, or informed them about the right of your privacy, running what ever you want, as long as it doesnt contain illegal activity. Not even then, are they allowed to point on you and tell "you cant run that here".
If this is true..switch ISP.