If Netscape support is not supplying the answer, the REVERSE ENGINEERING method may have to be used.
Use FILEMON and REGMON to watch what files and registry entries are being changed and then add that to you install program.
I am trying to install Netscape 7.1 on a etworked PC and immage the installation so that this immage can be pushed out to over 2000 PCs so it has a standardized setup but I am having problems with the PCs asking to create a default profile all the time. How can I setup Netscape to have all users use the same initial profile? Which files must be modified to point to new locations?