By networked PC you mean Mac...right?
if so you will need to make a bootable disc image, and have the other macs boot from it to install.
open disk utilities and load the DVD into the mac, to make the bootable from. then select the disc and from the image menu select new>image from disc.
from the new window select the desktop for destination or where you want to put the image file, the select DVD/CD master. verify that it is bootable.
when it is finished, have each mac mount your drive and select restore from DU menu.
...
sound hard , but this is the easiest way to do it...
PS if anyone finds a easier way of doing please post.
Hm, network install? #1 (for creating, you'd need os x server = #2) select network #3 creating http image #4 - all would need the server version.
Tested however just on Macs ..