I managed to get my Superdrive working with Windows 7 64bit just fine. Here's a link to my thread on Notebookreview that describes what I did:
http://forum.notebookreview.com/alienware/730890-using-apple-macbook-air-superdrive-non-apple-pc-not-running-mac-os-possible-not.html
For 32bit, if you read through the above, it's my understanding that as we need the AppleODDInstaller.exe file, you would need that in 32 bit format. I got mine from the 64bit version of Boot Camp, but if you require a 32bit version, that requires Boot
Camp 4 which is not the same version I downloaded in my guide.
Have a look at what Apple say about 32bit Boot Camp here:
http://support.apple.com/kb/HT5639
I imagine if you follow my guide, but substitute the version of Boot Camp I used with the correct 32 bit version (Boot Camp 4) you should be good to go. Version 4 can be downloaded from the same link I posted in my guide, or from here:
http://support.apple.com/downloads/#macoscomponents
Hope that helps.
Regards,
Stevie.