I created a package of all Windows 8 themes, which you can now download as a torrent. The package includes two Windows 8 themes for Windows 7 and another Windows 8 theme for Vista:
To download the themes you will need a Torrent client.
Top Torrent Clients
5. Yet ABC
7. XBT Client
8. G3 Torrent
I recommend uTorrent. uTorrent 1.8.5 has been just released and is perfect for sharing files like our Windows 8 themes.
Additionally, you will need a ZIP tool that supports .rar files. I recommend 7-zip, which you will find on our TOP10 Windows 7 Apps List