The site doesn't look too pretty in Netscape Communicator 4.8, but after turning off all java and CSS, it looks good enough to read and send and receive messages.
I don't think the image screens will work but let me attach one without converting it...
Yep, it is quite useable once you've got used to the layout.
Compared to Classilla it's quicker, less buggy, uses a fraction of the memory, and works in OS8.1.
Your screen shot won't open until the file type has been set to PICT.
Perhaps a more web friendly file format will show up though...