Question about Norton Ghost Corporate and 3com boot services

Hi

I just want some info on how imaging pcs using ghost corporate edition and 3com boot services work.

I have 8 computers (one setup as administrator pc, so 7 pcs).

I have read about the 3com boot services and dont know how it works.
I have created an image using ghost and can deploy using the console. But if i was to change the Hard Drive and want to do an unattented install how would i do it.
I would be very grateful if some one explain to me how 3com boot services work with ghost and how to implement this.

Thanks
Rash