CyanogenMod7 v1.7 (WiFi is fixed)

This is version 1.7 which came out 16/11/2012.
What's fixed?

• Fixed wifi! (If you turn off wifi, you need to restart the phone)
• Use last white kernel(1.0.1) for more compatibility (Click here to download)

Download: Click here.

The file that you are going to download is NOT a flashable patch, meaning that it contains the full Cyanogenmod ROM. The instructions on how to flash this are just like how you did with the older version, see the video below:

Source: http://forum.xda-developers.com/showthread.php?t=1996275