I tried this plugin on a short domain of mine. I love it. This works from the admin cp. My question to you is, how can someone not logged into wp create a short url? Say I have a staff member that I will not give wp admin login details to but I can give them a link similar to http://domain.org/shorturl/ in which they could go about creating short urls. Is there a way you have made this work outside of the wp backend?