You should be able to download the manual.
To scan film, you'll need to first remove the white cover on the underside of the scanner lid. That is where the backlight is. Also, you must be using the ScanGear driver and NOT the WIA driver. The WIA driver does not support film scanning. Locate your film guides. These are the templates that will hold the film and are placed on the scanner glass to be scanned. Lastly, there should be a Select Source option in the scanner driver that allows you to select Film as the source.
Hope this helps.