Nec 2100AD DVD Burner


I am an newbie here and I am having a bear of a time with my DVD Burner.
I have a NEC DVD+RW ND-2100AD drive on my pc. The drive was burning DVD’s fine until I upgraded from Windows XP Home to Windows XP Pro. Now it will no longer burn DVD’s. My guess is that the firmware needed to be updated. The problem is I don’t know how to update the firmware. I downloaded binflash for Windows (GUI) but I do not no how to locate the file that needs to be updated. If there is anyone out there that can point me in the right direction regarding getting my burner working again I would really appreciate it.