network boot/ install and grub?

[hbrhodes]

hey i think i have a thread on this before ... if not recently.  but i 
had to ask my question too.  i'm having extreme difficulty making a boot 
disk.  i've tried doing it from my linux computer and using rawrite from 
the wife's which has WinXP.  none of the computers will boot from the 
usb pen drive.  i have the system bios set up to do so, but it won't 
work.  SO.... i ask the topic question:

is there a way to have grub boot to my computer upstairs?  i want the 
computer to boot into the folder with the FC5 files ... or a folder with 
the iso image of FC5.  i have NFS turned on upstairs. the host / server 
(really a client which serves as a dumping ground) is downstairs.

they are both amd 1600+ athlons.  both are using FC5.

192.168.100.102 (upstairs)  this is the one i have the image iso on.
192.168.100.101 (downstairs) this is the one i want to install too.

NFS is on, firewall is off (router serves that function), and exports and hosts are set up.  everything should work!  but i don't know how to edit grub.conf ...

thanks

hbrhodes