andrewnash,
Could you be more specific about what the start and end states of the upgrade were and the processes used to get from 1 to the other?
Did your PC have a USB connector on it at all or did you add a card with USB ports? If it did, it will have been USB1.0, so no driver will have upgraded it to 2.0. A USB 2.0 device should still work, however, but only at 1.0 speed.
Presumably the drivers are for the device - if you can't find any reference to your richdrive, where did you get the drivers from?
Is this flashdrive a "memory stick" that plugs directly into the USB port?
Ihave an incredibly old Tosh portable that has a USB 1.0 port into which I have plugged USB 2.0 hard disks without problems, but there is insufficient power in the port to drive the disk, so it needs a power supply from PS2 mouse port.
When you say you plugged it in the computer didn't do anything - presumably you have checked to see if you have a new drive letter in My Computer? Do you need to format the disk before you use it? Do you have any help file / manual with the driver disk?
SD