Install Open manager on PS Groove Jailbreak?

Hi,

i buyed a USB Stick with PIC 18F2550.
PS Groove was installed allready.
It worked perfectly on the PS3.

But how I can install open manager on my playstation?
When I plug in the USB to my windows XP computer, it didn't recognize it as normal USB Stick, it says "Generic USB driver".

you dont use PIC 18F2550 you have to use a standard usb formated fat32