Hmm... that's not good. It looks like something went wrong with the firmware flash and I'm not sure if this can be undone. It's probably not showing in the BIOS either? Make sure the power and data cable connections at the back of the drive are secure.
You can check the FAQ in the LG Burner section and use Search on how to recover from a bad flash with an LG CD burner - or wait for someone who has tried this before to read this maybe. Unfortunately, I think your chances are slim as I know LG DVD burners can't be recovered.
Sorry I can't give you any better news. Did you get the firmware from lgservice.com? I see the latest is 104 and there's two downloads, one for Win 98/ME and the other for 2000/XP.