How To Download gtm-oauth files?

I am trying to add this library to my project but ca开发者_如何转开发nt seem to figure how to download it. I went to the source page and downloaded each file individually but they seem to be corrupt when i open them on my computer.

http://code.google.com/p/gtm-oauth/

To quote the source page which you have kindly linked to,

# Non-members may check out a read-only working copy anonymously over HTTP.

svn checkout http://gtm-oauth.googlecode.com/svn/trunk/ gtm-oauth-read-only