Got a new hp laptop running win 7 and an external drive connected to that. Wanna connect my acer netbook running xp wirelessly to it to add files to the external drive so i can access them with the hp. was able to set up a WAN and now can even connect to the internet through the hp. Can't access anything on the hp. tried all the workgroup and home group things but don't work and everything i read says they don't work together. how can i do this? Is it really that complicated?