I spotted @ nVNews forum an e-mail sent by Carrie Cowan of NVIDIA to one of their readers:

"We will be issuing an updated version of the Detonator 40 driver, with support for Windows 98/Windows ME operating systems, next week. Please visit our Website again next week for the driver download."

I got in touch with Derek Perez and he was able to confirmed this. Expect new driver next week!