In ParaInvite, when using the badges, how do I change the destination link?

At the moment, when the permalink is used, it redirects people to http://www.myurl.com[...]free?view=login which is in fact a login screen.

I want it to redirect to http://www.myurl.com[...]gister-for-free (without the ?view=login). Can I change this somewhere in the backend? If not, which file do I need to change?