There are no install instructions yet, but maybe I'll put some on the project's page in the following time..
To use (and understand) the BC2Conn class you need basic PHP skills I think.. Just download the zip archive, extract the included files, edit the example.php (you need to change the example ip and RCON port / password to your gameserver ones) and upload them on your webspace. Then you can call
www.example.com/example.php and you'll see some basic data of your gameserver.
To add new functions, just take a look at the
API - choose what you want to do and insert the function into your php file with the specific parameters if there are any.
Hope that'll do it.
- JLNNN