Airport and Audio Not Recognized after logicboard replacement

Hey everyone, this is about to drive me up the wall. I just replaced a logic board in my Santa Rosa 15" MacBook Pro (July 2007) with a more recent Penryn (Jan 2008) logic board. Both are 2.4 Ghz Core 2 Duo processors.
The Problem?
After replacing the logic board neither my Airport nor my Audio cards seem to be working. In fact the system doesn't recognize that I have either installed. I checked other ports like USB and MagSafe on the left side I/O board and they seem to be working without hesitation. What could be the problem?...how do I fix it since audio and internet are both pretty crucial.
I did notice a difference between the setups of the SR vs. Penryn MBP's with 3 airport antenae on the SR contrary to the 2 antenae on the Penryn. The airport cards also look a bit different regarding their individual casing with apple insignia.
I've checked the other forums and the deletion of the AppleAirport2.ktext did nothing nor did a "power system reset" by taking out battery and holding the power button for 10 seconds.
Is there anything I'm missing?

Perhaps the problem is an incompatible logic board.

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