Actually, I was alluding to the fact that (1)
Code:
C:\bootsect.lnx="CentOS 5"
is NOT a valid NTLOADER line from what I have seen. And further (2), NTLOADER doesn't directly load Linux: grub loads linux. What NTLOADER can do (I Think) is to load the boot sector as if the BIOS had just loaded a boot sector, and in that case, the boot sector would contain the boot-strap code that GRUB uses.
But Stevie Velvet is probably correct: easier to use Grub to load windows, perhaps, than the other way around.