Hey, i've downloaded the game client, and then i dont know how to install it, do i need the original perfect World foders? or any other thing?
If you downloaded it from this link: http://epicpw.com/index.php?topic=10.0Then make sure you have downloaded both parts, extract both files to same folder. Once this is done launch the game via the 'EPW Launcher' in the main folder. Let it patch and once this is done it should work fine.
All correct, only you should download only one mirror. I have added info about this in the download section to avoid confusion.