[newbie] Lilo Grub??

[Moe Pacal]

Hello

I tried installing rh7.0 but it corrupted my mbr.  I then tried installing
Mandrake 72 everything appears to go well but the autoloader section is
skipped and of course I do not have the option of choosing lilo or grub.  If
I try to force the autoloader by clicking on it at times it does giev me the
option of choosing grub (or lilo) where I than add  the linux and win
partitions but when I hit ok it says there is an error and no other info.
Thanks for any help.