Hi I just wanted to let peeps out there know about a nifty program I bought "Beam your screen"
You can download a trial from here http://www.beamyourscreen.com/GB/Welcome.aspx
I think you can pay monthly for it
I have found it great to use with my friends and relatives that have pc probs. Sometimes explaining how to use the windows remote assistant made me want to smash the phone up. But all you do with this is give them a web address and give them a session id that they enter when prompted and voila!! they can see you and you just switch presenter to their pc and take control.
It's really good
and has helped me