Picked one up for $3.00 and here is how to install it.... Let me know if I forgot anything.
Download and extract the following file to your home directory...
sudo apt-get install sane libsane-extras simple-scan
sudo cp ~/Esfw52.bin /etc/sane.d
sudo nano /etc/sane.d/snapscan.conf
At the top, add the line
Uncomment the following line
type (control)-o (enter) and (control)-x to save and exit
test it in simple scan... Good Luck..