it is not really easy to run a ptc site. you need a lot of time to spend a ptc site. or if you don't have time you will not be able to manage your site well or end up closing the site prematurely .
yes it is not so easy.
firstly you should pay some money for script and the domain name and the space.it will cost you much if you do not know anything about programming.
and then you should deal with cheaters all the time.