Hi Carolineij and welcome to the forums.
It should be possible to get this game running on Windows 7 64 bit.
OK first of all look in Control Panel Folder Options and View Tab. Uncheck Don't show hidden files, folders, or drives.Uncheck the three hides starting with Hide empty drives. See screen shot.
Your screen should then look like the second screen shot (Icons my be different depending on programs installed). Right click on the SETUP.exe and RUN as ADMINISTRATOR and it should run set up as normal.
You may have to change the properties in the icon tab to run as ADMIN and set to XP compatibility mode. Compatibility Mode