Hello PackJac, and welcome to Seven Forums.
Since it doesn't have a 64-bit Windows 7 driver, see if it has a 64-bit Vista (preferred) or 64-bit XP driver to install instead.
If that driver doesn't install normally in Windows 7, then try installing it using compatibilty mode on the driver installation file by using OPTION ONE in the tutorial and selecting the OS (step 4) that the driver was for instead.
Hope this helps,
Shawn