Few questions about Lilo
 

1) What happens to the Lilo screen if I install more than one Linux distro on the same HD? Will I be able to pick which one I want to load?

2) Do most/all distros come with Lilo?

3) Right now, my Lilo screen has the mandrake logo on it. If I install a different distro, will it replace that logo?

1) If the other distro installs its on version of Lilo yes it will; if the other distro uses GRUB (Grand Unified Boot Loader) Lilo will cease to exist, having been replaced by GRUB.
2) Yes and no, most of them I have used shipped with Lilo although some of them preferred GRUB.
3) That depends on if whether the different distro replaces Lilo (most do).