I believe Unitrunker stores data in your roaming folder.
Not at a Windows PC with it installed currently but look somewhere under...
C:\Users\YourName\AppData\Roaming\Unitrunker
If you are having trouble getting there, put %AppData% in the URL bar of Explorer and it'll get you in that direction.
If you need further support with Unitrunker I'd suggest going to the
Google group.