No Connectivity for MN-510 USB Adapter

Hi,
I recently purchased a MSBN MN-510 Wireless USB adaptet
for my desktop... I'm using a Windows 2000 operating
system. I'm trying to install MSBN without any luck... i
follow all instructions and the system doesn't detect the
Adapter. Everytime i take it out and put it back in the
USB slot, the green power light lights up for a second and
then disapears. The help section just says that the USB
has to be powered. I have tried using the Update from trhe
MSBN homepage but that is only an update to the graphics
of the MSBN software... I think it may be some problem
with the USB itself... but without a valid internet
connection I cannot install the Microsoft Service Pack 4
(Windows 2K)which (maybe) contains the USB update that i
may need. Have any of you encountered this
problem? Or know of anyone who has? Appreciate the help.

Regards,

Quinton.