This is a pretty sweet operation.

Just download the BOINCpe_beta_ file.
Unzip.
Put a windows XP install cd in the cd rom.
Put blank cd in burner.
Run PEbuilder.
Boot diskless machine with cd, and poof (oops...poof bad)...I mean ta-da!

If you use a RW CD. You can go back and play with the PEbuild setup files. and burn another one until you get what you want....