Installing epa in Windows

[tcsmfgenml]

I am trying to encrypt files with emacs on a Windows machine, so I am trying to 
install the epa package. I downloaded the package from 
sourceforge.jp/projects/epg/releases. I downloaded and uncompressed 
epg-0.0.16.tar.gz, but I cannot figure out how to install it. All of the 
instructions seem to be for linux (but it comes installed in the linux 
version). (I know the best solution but my wife and daughter want to run 
Windows on this system.)

Can anyone give me some pointers on installing this package on a Windows 
machine?

Thanks,
             -- Tom