[Hampshire] post windows reinstall

Hi I wonder if anyone can help me. I reinstalled Windoze as a gaiming
partion. I want to reinstall grub and am runing into problems.

I have 3 partions
1. Ntfs /dev/sda0
2. et2 boot (with all grub menu 1st etc) /dev/sda1
3. root et3 LVM /dev/sda2

Now I am runing Ubunta 6.10 I tried the live cd. Invoking the grub shell
find vmlinz file not found ! then install grub /dev/sda0 just hangs .

Any ideas ?

Thanks