Partitioning a drive with windows already on it?

[Dan Murphy]

Hi listers.
I hope everyone has a happy and prosperous new year.
Here's what I wanted to do, but I'm not sure if I can do it.  I have
another computer running Win98 SE with a 20 GB drive in it.  I am
currently running Zipspeak on it, but I would like to install a full Linux
system on it.  My question is, is there a utility out there that will let
me create a partition or partition from the free space?  I can't really
blow away the existing W98 partition because whistling up Sighted
assistance to reinstall Windows isn't really a practical option.  I had
 thought of zipping my entire Windows folder, but I don't know if it would
run once restored.
Has anyone ever done this before, and if there is a way, how could I do
it?
thanks.