Yes, Studio 14 and 15 are supported on Windows 7 as well as Windows XP and Vista.
The following link shows which hardware is compatible with Studio 14:
What capture hardware will work with Studio 14?
Most of this hardware will work in Windows 7. �Click the following link to go to the hardware driver download page. �If there is no driver listed for the desired hardware in a certain column, it means that the hardware is not supported under that operating system.
Pinnacle hardware drivers download page