1) Obtain phpmychat*.zip
2) unzip it into the directory you want
3) Make sure your directory structure is like this:
chat/
chat/config
chat/images
chat/images/smilies
chat/install
chat/install/databases
chat/install/languages
chat/lib
chat/lib/commands
chat/lib/database
chat/localization
chat/localization/*
chat/tutorials
docs/
4) Before updating from an older version of phpMyChat, clean the messages table
(using the 'chat/admin.php' script of the old version, for example).
5) Then you have two possibilities :
a) Use the online configuration tool by accessing 'chat/setup.php'
b) Do it manually. Move into 'chat/config' directory and make changes to the
config.lib.php file. This file is well documented, so you should be able to
pick out what you need to change fairly easily.
6) Once all this has been done, you should protect the config file (that contains
your login/password for db access). Look at your server documentation to find out
how to do this.
For the Apache server, you'll need to create an ".htaccess" file (without quotes) in
the config subdir that contains:
<files config.lib.php>
Order Deny,Allow
Deny From All
</files>
7) Add more languages by downloading them on phpHeaven, and put the directories
in chat/localization/