foldershare

I want to use foldershare between my desktop at home and my laptop when travelling! Sounds like a normal application but I have tried setting it up with both pcs on my wireless network and am haveing trouble - dont fully understand relationship between 'my foldershare' and 'foldershare satellite' and the difference between using pcs on same network vs remote access!... can someone please help because I find the microsoft instructions slightly confusing - maybe the odd diagram or other graphic representation would help! Thanks in advance for your help
Adrian