Well, if you write valid html it will display fine in any browser. IE is just real sloppy on rendering, so it covers alot of mistakes. Netscape is more standards based. Validate your code here:
http://validator.w3.org/ I know I'm bad at doing it, it's a pain to go and correct all of your code. I just correct enough to make it work
I use Netscape and Mozilla on an everyday basis, and I love it. I write everything for Netscape and it always looks perfect under IE!