# Decompress the phpBB 2 archive to a local directory on your system.
# Upload all the files contained in this archive (retaining the directory structure) to a web accessible directory on your server or hosting account.
# Change the permissions on config.php to be writeable by all (666 or -rw-rw-rw- within your FTP Client)
# Using your web browser visit the location you placed phpBB 2 with the addition of install/install.php, e.g.
http://www.mydomain.com/phpBB2/install/install.php, http://www.mydomain.com/forum/install/install.php etc.
# Fill out all the requested information and hit Submit
# Change the permissions on config.php to be writeable only by yourself (644 or -rw-r--r-- within your FTP Client)
# Click the Complete Installation button or revisit the location you entered above.