you need a GRIFFIN G4 PORT, not a PCI card.
where the phone symbol is, that's where the connection goes, the book will guide you to setting this up, then the cable from the MIDI INTERFACE to G4/port will be fine
make sure you use OMS 3.2.8 or FreeMidi, OMS is better suited
make your configurations and your set. hope your using DP3
((this will be very easy if you have a MOTU Interface, not so sure with other interfaces))