What to do with multiple kernel images

[gary turner <gary.kk5st@gmail.com>]

Through upgrades, etc., I've accumulated six kernel images.

gt@koko:~$ ls /boot
config-2.6.18-5-486          initrd.img-2.6.25-2-486
config-2.6.21-2-486          initrd.img-2.6.25-2-486.bak
config-2.6.22-2-486          System.map-2.6.18-5-486
config-2.6.22-3-486          System.map-2.6.21-2-486
config-2.6.24-1-486          System.map-2.6.22-2-486
config-2.6.25-2-486          System.map-2.6.22-3-486
grub                         System.map-2.6.24-1-486
initrd.img-2.6.18-5-486      System.map-2.6.25-2-486
initrd.img-2.6.18-5-486.bak  vmlinuz-2.6.18-5-486
initrd.img-2.6.21-2-486      vmlinuz-2.6.21-2-486
initrd.img-2.6.22-2-486      vmlinuz-2.6.22-2-486
initrd.img-2.6.22-3-486      vmlinuz-2.6.22-3-486
initrd.img-2.6.22-3-486.bak  vmlinuz-2.6.24-1-486
initrd.img-2.6.24-1-486      vmlinuz-2.6.25-2-486
initrd.img-2.6.24-1-486.bak
gt@koko:~$

Can I safely rm those I don't want to keep?  Are there other directories 
and files that need to be included in the clean-up?

cheers,

gary
--
Anyone can make a usable web site. It takes a graphic
designer to make it slow, confusing and painful to use.

begin:vcard
fn:Gary Turner
n:Turner;Gary
org:Gary Turner, Web Developer
adr:;;;;;;USA
email;internet:gary.kk5st@gmail.com
title:Czar
x-mozilla-html:FALSE
url:http://gtwebdev.com/
version:2.1
end:vcard