Just won't start after nag screen?

My expired free SmartFTP just won't start. I get the nag screen and when I click "OK" the nag screen goes away and SmartFTP doesn't start. Is this what is supposed to happen? I don't know what version it is as it won't start. I am using XP. It was intermittent at first but now it won't start at all.

The dialog says to install the newest version of SmartFTP. To do this download and run:
https://www.smartftp.com/download

Another option is to purchase a license at:
https://www.smartftp.com/buy.php

Regards,
SmartFTP