what happens when you boot your system then? if you only get linux then you will have a bootloader (grub or lilo) on there, which you can edit. if it is lilo then edit /etc/lilo.conf and then run"lilo" as root to activate the changes. if it is grub then edit /boot/grub/grub.conf (changes are automatic)
as for burning things.. nah that's not what grub is at all, it's just a tiny little bootlader program.
incidentally the 1024 cylinder issue was resolved a long time ago now, so idn't relevant in choosing between the two loaders. personally i like grub nowadays, much more logical and scalable. simplest instructions i found for just installing it (and lilo to a lesser extent) is
http://www.gentoo.org/doc/en/gentoo-x86-install.xml step 23. - don't worry that it's for a different distro - just ignore anythign about acutally installing grub ("emerge grub" etc...).