Hi Emily
I am sorry that the platforms are not yet available for PC's..... this is one area that you Mac folk have us PC folk beat.
However, a good place to always start is with the publisher and their FAQs in this case Real.com check them out.... unfortunately, they do not have a step, by step series.....I guess it is always asumed to be "plug and play" if it is Mac.
An alternative for realy "troublesome" questions is "deja.com" and then post a question....someone, somewhere, in the world the has encountered the problem before you and posted it to the international news files.
Good Luck....and have fun.