Flash support nightmare

well I have been at this for three weeks and am very unhappy with atv Flash, I perchused this understanding all I required was there. only to find that I required
Flash support Cut out of an operating system I can’t get accsess to and I require a Mac to install it anyway. online there are links to virus filled hell holes, that do not realy have it. so unless I am reading this wrong. " this sucks " If I am in error somone please tell me so and lend a hand. all I wanted was to watch boxee. :cry: