Copy the Grc.dat file from the NAV server, which you want managing the individual clients, to the clients. This is accomplished by...
1. Connect to the VPhome share of your Nav Server.
2. Copy the Grc.dat file.
3. Win95 clints - Paste Grc.dat to c

rogram files\nav3a. Restart Win95 client.
3b. Log on to Win95 client.
3c. Wait about 5-10 minutes and check your SSC console to verify that the client is in the location it is supposed to be. You may have to refresh the screen.
4. WinNT/2k clients - This is a little different. Paste the Grc.dat file to c:\documents and settings\all users\application data\symantec\norton antivirus corporate edition\7.54a. Restart WinNT/2k client.
4b. Log on to WinNT/2k client.
4c. Wait about 5-10 minutes.... See step 3c.
This should work. I had to do this when replacing our original Nav server with a newer one.
Your other option is to push the installation back to the clients from the second or third installation. Unfortunately, pushing does not work for 95 clients as they are not network objects. Make sure if you choose this option to only perform a few reinstalls at a time. Just in case it doesn't work quite the way it should. In other words, some Win2k clients will bog down after an install or reinstall of Navce. They will need to be rebooted. WinNT I believe will need to be rebooted as well.
Neither option is quick and painless. But they both work. I know. I have had to do both on separate occasions.
Hope this information is useful on getting you where you need to go. Your other option is to use the Symantec knowledgebase articles or contact them.