scanmaker x6 with vista

I have windows vista.

i have a microtek scanmaker x6 scanner & can't save scanned copies to my
hard drive.

i don't have the scanner software but downloaded it online. The scanner is
connected through a USB port.

When I do a scanner test, the scanner works fine & a picture of my scanned
copy shows up on the test screen, but it won't save to my hard drive
anywhere.

When I go into my scanner & cameras folder in the control panel, scanmaker
is there but when I check in properties it says its unavailable.

I downloaded Vuescan & it works now, but the trial version puts $dollar
signs all over your copies & I'd rather not pay $40 for the software.

Is there a free solution to my problem?

Thanks!

- John