There is no official release yet for the 1.x version, so you'll need to download the latest snapshot or checkout directly from SVN.
Latest snapshots:
my-framework-1x-trunk.zip (only the framework)
my-application-1x-trunk.zip (includes the framework)
Get the latest version from SVN:
My Framework source code:
http://my-framework.com/svn/phpframework/1.x/trunk
Application skeleton (includes the framework):
http://my-framework.com/svn/phpapplication/1.x/trunk