It is impossible to use the Metin2 server binaries on systems other than FreeBSD because of its compilation format.
You will have to get a FreeBSD installation image (for VPC/VBox servers) from
[Only registered and activated users can see links. Click Here To Register...], probably the ".iso" file for FreeBSD 7.* oder 8.* (9.* not recomended - it's still unstable).