Whenever you find a page in another language that comes up as gibberish, find the encoding menu. Your gibberish page should reappear with all the proper characters in all the right places. If it doesn't, one of those darned variables is giving you trouble. You can use these same principles to send foreign language e-mail through Netscape mail as well. You will need to coordinate with your correspondent as to what character set to use.
Asian languages require a specific input device to type text.
This will come with a commercial language kit. The encoding you choose to write your message in will determine how your recipient will be able to read it. If the two of you are using different encodings, you'll be sending each other gibberish. Since most current Web pages and e-mails do not have an encoding specified, you will have to manually switch to the appropriate language for every page and every mail message you wish to read. Netscape now provides an Auto-Detect choice that the page creator can enable to automatically switch encodings for you.