When you are inside Android, there is a box you must check off, in order for your PC to recognize it.
You might want to re-read that thread, it explains how to properly remove Android with the ACMEUninstaller. You might also want to consider installing a fresh CM9 build, far better than CM7.
(From ncinerate's How-To guide)http://forums.webosnation.com/androi...ted-guide.html
if you want to transfer files back and forth from the CM9 touchpad you might have difficulty figuring out how exactly to do it. Here's how you pull it off:
First, tap on your app drawer in the top right of the screen (the little checkerboard). Now, select the "settings" icon.
Now tap on storage on the left-hand pane.
Finally, the tricky part - tap on the 3 squares at the VERY top right of your screen. It will bring down a little drop-down menu for USB computer connection. Tap it and put a checkmark in the "Media Device MTP" box.
Now you can plug your touchpad into the computer at will and transfer files back and forth from it. Easy as pie, I'm not sure why this isn't activated by default, but it's a simple fix if you know what to do.