Hi mate, I am having the same issue as you're. I have tried to extract 2 files wifi.ko&ar6000.ko in doom kernel to /system/lib/modules and then wifi turns to work properly! But If I restart the phone, those 2 files are automatically deleted!!! I think this must be a bug. In this mean time, you can do as what i do to use wifi temporarily and patiently wait for the fix from Fera.
Did you flash enlighter script?
---------- Post added 27th April 2012 at 12:17 AM ---------- Previous post was 26th April 2012 at 11:23 PM ----------
I found out a strange problem, files in system/lib/modules automatically restored after rebooting
I deleted some files in that folder and rebooted. Then the deleted files appeared again.