MACKIE 802 VLZ3 HELP!

Hi, i have a Mackie 802 VLZ3 that i was planning on using for ardour but when i try to set up jackpilot it lets me change the input device to the mackie but it changes the output device to mackie as well. Doing this, im not able to hear any audio coming out of my speakers or my laptop when i disconnect my speakers, changing the input device and output device to the built in ones let me hear the audio i recorded but it wont let me use the mixer, can someone help me fix this so that i can use the mackie as an input but i can also hear the audio i recorded come out of my speakers??

telefunk: what version of JackOSX do you have? Also, please read: http://jackaudio.org/multiple_devices