Removal of not used kernel

["Vegard Lundby Rekaa" <vegardlr@student.matnat.uio.no>]

I'm going to change from kernel 2.6.8 to 2.6.7, but I've heard that the
old kernel will still be on my computer after I've installed 2.6.7 with
this command:

# apt-get install kernel-image-2.6.7-1-386
# shutdown -t1 -r now

I don't plan on ever returning to kernel 2.6.8, can I remove it?
OS: Debian Sarge

Vegard