If you still have 7.2 installed, you don't need to do a thing, but some people have complained that when there is a link in 7.2, it will not open 8.x, but rather 7.2. There should be a solution, but none of the threads gave me adequate information. I have downloaded and installed the free standing Mozilla Thunderbird for mail, and there is no problems there.
Now, how to get you mail in NS8.x? This seems to be a top secret for the Netscape8 developers, because I see no mention in their FAQs. If there is any mention, I would like to know where. So, the step are the followuing:
1. You must make your mail client you default.
2. Find View|Toolbars|customize in NS8
I think that it should be in the Personal tab, drag and drop System Mail.
I just checked mine, and I understan that many icons do not show up after being dropped, but I have next to nothing. So, if you are in System Mail you should be in business. Just ignore the New Message. Some people had some problem there.
I think that this entire thing, is an attempt to make things more like the Microsoft stuff, Internet Explorer has no mail, but it can link to Outlook Express and Outlook. Give a shot. I may work, after all.
UserAgent: Opera/8.50 (Windows NT 5.1; U; en)