I am trying to do a tfpt installation of Centos 5.1, i've been googling around since yesterday morning and hv tried various things but was not able to get it running. All I was able to get is the DHCPD running.

Can someone please direct me to some good documentation, as to how to setup a PXE boot installation from Centos?

You can try this link. Hope it helps.

http://wiki.centos.org/HowTos/DisklessClients

Regards,

Sameep