If you want to install lilo to the MBR (this is the default installation) just choose the first option "try to install lilo automatically".
If you want to install lilo to some other place, like the root partition or whatever, choose the "expert" mode and install it where you want.
A bit more info would help:
1. Where do you want to install lilo, and why?
2. How many hard drives do you have?
3. Are you just booting Slackware? Or Slackware + Windows? Or Slackware +/- Windows + other linux distros?
If booting Slackware + other distros I would recommend grub instead of lilo. IMO it is just easier to manage multiple distros with grub. You can get grub from the /extra repo from any Slackware mirror. Or if your other distro already has grub installed to the MBR then just use that, and edit the grub menu.lst to boot Slackware.
Last edited by tommcd; 02-26-2009 at 03:24 AM.