I have just received a similar (branded OTEK Filmscanner FS500-2) scanner and also had trouble getting it to work (Windows 8 had no support for it but no surprises there). Vuescan also unfortunately didn't recognise it either. I did however manage to get it to work under Ubuntu 13.04 although it failed under 12.04.
lsusb gives me:
Bus 001 Device 004: ID 05a9:1550 OmniVision Technologies, Inc. VEHO Filmscanner
and I found that Cheese will capture photos from it as looking at syslog it appears to be treated as a USB Camera
kernel: [ 251.108071] usb 1-4: new high-speed USB device number 4 using ehci-pci
kernel: [ 251.241541] usb 1-4: New USB device found, idVendor=05a9, idProduct=1550
kernel: [ 251.241546] usb 1-4: New USB device strings: Mfr=1, Product=2, SerialNumber=0
kernel: [ 251.241549] usb 1-4: Product: USB Camera
kernel: [ 251.241552] usb 1-4: Manufacturer: FW-07.07.25
prometheus mtp-probe: checking bus 1, device 4: "/sys/devices/pci0000:00/0000:00:1d.7/usb1/1-4"
mtp-probe: bus: 1, device: 4 was not an MTP device
kernel: [ 251.306084] Linux video capture interface: v2.00
kernel: [ 251.325134] gspca_main: v2.14.0 registered
kernel: [ 251.337586] gspca_main: ov534_9-2.14.0 probing 05a9:1550
kernel: [ 253.184436] usbcore: registered new interface driver ov534_9
colord: Device added: sysfs-FW-07.07.25-USB_Camera
You can install cheese by:
sudo apt-get install cheese
But I am now looking for something that feels a little less 'cheesy' for scanning all those old family negatives (and the one filter that cheese seems to be missing is 'negative' so I can see what the photos actually look like while scanning them.