TurboPrint & PrintFab

I have turboprint installed on one machine, and I think it may have used a license slot upon reinstalling on the same machine after upgrading the os. Is there a way I can check what machines are using a license under my license key? Thanks.

That would be ubuntu 9.04 64 edition, and turboprint most recent as of 8/21 (date of download, don't know the version num) also 64 bit edition.

So the installer crashed out after asking me for permission (multiple times, no wrong password error). At the command line "sudo turboprint", will execute the setup as a superuser and avoid any of those issues.