Yes, I installed the driver, but because I have zero knowledge when it comes to working with Android devices in Recovery mode, I didn't realize that "apply update from SD card" would only recognize zip files. So I found an update.zip file you posted in a different thread, copied that to my SD card, and it worked! My Likebook is functional again
I'm still not sure why my PC failed to recognize the Likebook. Maybe it was too corrupted. I got strange error messages when connecting it as well, about a "power surge on the usb port." Those went away after I recharged with (of all things) my Samsung rapid phone charger, but the "no device found" message from Android Tools persisted.