Although Canon officially stopped supporting many scanner products for Vista and Windows 7 in general and 64-bit in particular, there have been several work-arounds found that apparently work well in most cases. The most successful results seem to come from installing the VueScan drivers from www.hamrick.com. They developed their own set of scanner drivers for many models of scanners and All-in-Ones. The *VueScan* documentation does specifically list the CanoScan 3000F scanner.
Note that after a demonstration period, there is an associated cost with the software. Without the software package, the drivers alone may or may not work long-term for your particular installation.