To install apache the simple steps are:
cd /usr/ports/www/apache22 && make install clean
To extract your root.epk you need a tool the most people use the Metin2 File Archiver from tim66613
The usage is pretty straight forward just look at the example.xml and look for extract.
Im pretty sure you will understand it
Im a human being and I gave you advice so feel free to go out to the world and try your new knowledge.