Unplug the phone from your computer.
Go to your Device Manager and see if it says "ADB." If so, click on it. It should drop down and say "HTC Dream." If it does, then right-click it and click "Properties" and then go to the "Drivers" tab and click "Uninstall"
It will ask you if you want to delete the driver software from your computer, check the box to delete the software and then continue. The plug your phone back in. Your computer should automatically install the USB Mass Storage Device drivers, and once it finishes, mount your SD card via the notification and enjoy your files.
EDIT: Oh, and Windows may or may not tell you that your device is malfunctioning every time you plug it in, if it does just ignore it.
Go to your Device Manager and see if it says "ADB." If so, click on it. It should drop down and say "HTC Dream." If it does, then right-click it and click "Properties" and then go to the "Drivers" tab and click "Uninstall"
It will ask you if you want to delete the driver software from your computer, check the box to delete the software and then continue. The plug your phone back in. Your computer should automatically install the USB Mass Storage Device drivers, and once it finishes, mount your SD card via the notification and enjoy your files.
EDIT: Oh, and Windows may or may not tell you that your device is malfunctioning every time you plug it in, if it does just ignore it.