kernel version modules

[John Dangler]

I was looking through lib/modules this morning (on an unrelated issue),
and noticed that I have what appear to be complete versions of 3
kernel .ko modules stored on my drive.  Looking in /boot, I also see all
three kernels there.  If I only want to use the latest kernel version
(I'm currently running Dapper 2.6.15-27-386), is there a way for me to
clean out the other versions?