you won't be able to use that trackpad
i know that some mbp users with their early 08 models and 10.5.6 had modified the "/System/Library/Extensions/AppleUSBMultiPod Touch.kext/Contents/Info.plist"
with that:
<key>TrackpadFourFingerGestures</key>
<true/>
<key>TrackpadSecondaryClickCorners</key>
<true/>
that way they were able to use the 4 finger swipe, i know that there are many hackintoshes with multiPod Touch gestures out there - but i don't know if there is a chance to get those things done on an a1211