Are you running 32bit or 64bit Mint? Also, your link to the driver is dead. I think you can find your driver here:
You will need to download the *.deb packages for your architecture(32bit or 64bit) and install in the proper order. According to this:
You install the *.deb "data" package first(same package for 32bit and 64bit) and then the "iscan-*.**.*-*~usb0.1.ltdl7" deb package for your architecture.
To install the *.deb packages open a terminal, navigate to the directory where you have the downloaded *.deb packages and run:
$ sudo dpkg --install <deb package name>
I haven't run Mint in some time, but IIRC, you can also install deb packages by clicking on them; you will be prompted for your password and the installation of the package will proceed. You can give that a try and see if it works. If not, you will have to use the command line as outlined above.