As per the Read Me document, these files should be installed in C:\ProgramData\MakeMusic\Finale2014\. The folder ProgramData is a hidden folder. You must unhide it.
The Program Data folder replaced the All Users folder in previous versions of Windows. To unhide the folder:
Open Windows Explorer.
Click Organize / Folder and Search Options / View Tab.
Select the Show Hidden Files, Folders, and Drives option and
iMac i7, OS 10.8, 10.9, W7
VDL2.5.5, Finale 2010-14
Kontakt 4-5, various other soft synths