Lenny Net Install

[Chan Lee]

Hello,
 
Trying to net install the Lenny using an ISO CD of:
 
debian-500-i386-netinst.iso (153,520 KB)
 
but then it never got into the Linux boot stage. 
 
The system is set to boot from the DVD ROM, and
ran some DVD cycles (as the green lights blinking)
then ran into the Window boot about a minute later.
 
Can anyone help ?
 
Thanks !
 
C. Lee