Version 4.1.2 & PHP Version 5.2 error

First of all, Thank you for the plugin and for making it free.

I have a problem with Version 4.1.2, Plugin could not be activated because it triggered a fatal error. The Two Factor Auth plugin requires PHP version 5.3 or higher

My PHP Version is 5.2 how can i download the Version 4.1.1?

http://wordpress.org/extend/plugins/two-factor-auth/