Does Internet Explorer work?
In any case, it would be a good time for you to upgrade. Netscape is Mozilla with AOL add-ons thrown in, so you'd probably be comfortable with Mozilla. Do you use Netscape for browing only or email too?
BTW, Netscape 7.0.1 is equal to Mozilla 1.0.2, and Mozilla is on version 1.7 now. There's a lot of new, cool stuff, better stability, faster rendering, faster launching, better standards compliance and a smaller memory footprint.
Yes, IE works just fine. And Netscape is working fine again.