If you want HWA kernel on this ROM, you must do the following.
1.. Download the CM9 ROM with HWA from xylo
2.. Extract the zip file, or just open it using 7zip, find the /system/lib directory.
copy it to a known location on your computer i put mine on the desktop
3.. Open aokp zip file, and find /system/lib directory and DELETE it
4.. Grab the extracted lib on your desktop and ADD it to the /system directory on the aokp zip file.
5.. Install me
If you did everything right you should get HWA. I personally copied the lib directory, and the kernel directory from the CM9 build. and a few things didnt work:
1. WiFi would never turn on
2. WHen accessing a submenu, like widgest menu, you would get a rendering problem. see attached image.