An easy, cut and paste way to get The Mustek 1200 UB Plus USB Scanner or one of it's clones working in Ubuntu Breezy through Ubuntu Maverick and beyond.
Open the Terminal(Applications>Accessories>Terminal), copy and paste the following one at a time.
To get to the proper directory:
Code:
cd /usr/share/sane/gt68xx
To download the driver firmware file sbfw.usb from the SANE gt68xx-backend site:
Code:
sudo wget http://www.meier-geinitz.de/sane/gt68xx-backend/firmware/sbfw.usb
Then open the gt68xx.conf file for editing:
Code:
sudo gedit /etc/sane.d/gt68xx.conf
Replace / Uncomment: hint: use ctrl+f to find
Code:
#override "mustek-scanexpress-1200-ub-plus"
With:
Code:
override "mustek-scanexpress-1200-ub-plus"
That's all there is to it, now you can go to Applications>Graphics>XSane Image Scanner(or SimpleScan) to scan your images.
Enjoy!!
The only thing better would be a script to do it for you 
Edit: A mirror location just in case the sbfw.usb host goes down. http://www.multiupload.com/4LNXQQKTC6