Have you tried using a statically-linked version of Netscape? I also have had problems with Netscape & libraries, but if you use something like the static Motif version of Netscape 4.6, there shouldn't BE any problems to worry about. Problem is, I don't recall seeing any earlier versions of Netscape available as statically-linked binaries, and I think Netscape 4.6 requires a couple other packages that might very well not work under Hamm.
I really don't see why Emacs, Netscape, and Apache would conflict with each other, or even know about each other's existence.