I have a maxtor 3200 usb external hard drive and I was running it on a mac.
My mac was dying so I backed everything up on the maxtor and bought a new laptop , a PC not a mac and found that it would not read my maxtor at all. I have looked in the device manager and it shows it in the device list but I have no way of accesing it and it has all my files and music and loads of stuff I am desperate to get hold of on it.
I am running windows vista but have also tried on xp and 2000 with no joy and my I cannot transfer back to the old mac as I don't have a monitor for it anymore and knowone has a mac I know!
Check and see if this may help you. It is read only, but that should be what you need. There is another app called mac drive that has a demo. I am not sure of the demo limits, but it may be worth a look.
I have not tried any of this, so i sure hope they work on regular windows PC's that are not under boot camp.