How can I have Netscape 4.75 without upgrading 157 packages to unstable?

[Tricky Rick <mccombs@sirinet.net>]

I just installed Potato and read in the mailing list archive
How to upgrade Netscape to 4.75 but in order to do that I include
unstable in my apt source list.  I installed Communicator 4.75 and
everything it required but now dselect wants to update about 157
packages, and I would prefer to keep everything (except what is required
for Netscape 4.75) stable what should I do?

Rick