I knocked this out just now.
INSTALL_PASSWORD: INSTALL_PASSWORD protects the installation process which an online way to create or re-write config.php. For example, if the database becomes inaccessible, the installation screen will be presented to any user who visits the main page which will allow that use to create or re-write config.php. If INSTALL_PASSWORD is blank, anybody who visits the main page will be allowed to reconfigure the ajaximrpg instance. If INSTALL_PASSWORD is set to "DISABLED", the installation screen will be disabled; config.php can only be edited using a text editor and no online changes are allowed. If the INSTALL_PASSWORD is anything else (which is stored in plain text in config.php), the user will be prompted to enter the installation password to access the installation process. INSTALL_PASSWORD is the mechanism for allowing online installation when you first install ajaximrpg but protecting you if a user stumbles across the online installation process later because the database is down or the ajaximrpg installation is malfunctioning in some way.
SQL_HOST: The IP address or DNS address of the MySQL database server. This is relative to the server that ajaximrpg is running on, not the client that is accessing ajaximrpg.
SQL_USER: The MySQL user name that ajaximrpg will use to access the MySQL database server.
SQL_PASS: The MySQL password, in plain text, that ajaximrpg will use to access the MySQL database server.
SQL_DB: The MySQL database in the MySQL database server that ajaximrpg will use for ajaximrpg.
SQL_PREFIX: The prefix to use for all tables in the MySQL database. This is a convenience so that ajaximrpg database tables will be grouped together and can co-exist in the same database as ajaximrpg plugins and other programs.
MAX_BUDDY_ICON_SIZE: There is a partially-implemented, partially-broken feature where a user can upload an avatar/image/icon that will be shown next to his name. The MAX_BUDDY_ICON_SIZE limits the size of each of these images to prevent users from using up all the disk space on your server with giant images.
Is this what you are looking for?
Dan
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Totally free. Totally easy. Totally open. Play RPGs instantly.