Windows 7: Not Recognizing Microphone

Hello.
Just a few things.
I have my speakers plugged into my mobo, and they work fine. Windows 7 recognizes them no problem.
When I plug my microphone in to the pink hole, nothing happens. The Recording Properties says that there is no microphone plugged in.

Another thing is that Windows 7 automatically installs my motherboard drivers during setup so that I never have to install them manually. This is great. However, Device Manager shows that my Audio Driver is: Microsoft 6.1.7100.0. It says it is working properly. The problem is that my Foxconn G33M motherboard uses: 7.1 channel Audio with Realtek ALC888 (HDA). The Foxconn website says that my driver should be: Realtek HDA Audio Driver 1.95. But the download link is broken. I went to the Realtek site, and they had a 'HD Audio Codec Driver'. I'm not sure if that is the same thing or what that means.

If anybody can help me with this, that would be great. Thank you.