Windows 7: windows installation from network

Hello,

don't know if this is the right topic, but I have following problem: I would like to to install windows xp to my father's computer from lan. We have 3 laptops at home connected to homegroup. The rest 2 laptops have Windows 7 installed. I tried to use TFTP to install the windows from lan, but I had no success. I was going according to this website Easy way to PXE Boot Windows « Lockstockmods Isn't the problem that I installed TFTP on Windows 7 computer? Or could you give me any other advice how to install windows from lan? It's really urgent.



I always get PXE-E53 error that says "PXE-E53:No boot filename received"
"PXE-MOF:Exiting Intel Boot Agent"

Thanks in advance for your response.