Gannon,
The first version of this ROM I installed was MIUI-OV-04042012 which has been running quite well. I have no problems with wifi at all. I upgraded to 041420122 after wiping and installing 03232012 as suggested on the OP and had no wifi what so ever. I tried wiping and reinstalling 03232012 and checked wifi which is fully functional. Wifi is then lost once again when upgrading to the 041420122 update. I did a full overboard wipe for every install except when upgrading to 041420122 which was just wiping cache and dalvik cache. The V model I have is the newer version which I bought last fall.
The reason I tried the newer version was because GooManager said there was an update, but wouldn't do the update - just kept coming back to the screen to download the update after saying it did the download. I checked the sd card and the zip was there, but only 7k in size and not valid. I have since gone back to my backup of 04042012 and have froze GooManager in link2sd so it won't keep telling me to update. Will that effect the ROM's operation having GooManager frozen?
Hope this info is useful,
Germitty