How can a non-commercial licence expire?

I downloaded the non-commercial version of SSH (SSHSecureShellClient-3.2.3.exe, size 5,476,352 bytes), used it for a while, and now it claims my license has run out and I need to buy it. Ummm... I'm just using it for personal use at college. If this isn't the real non-commercial version, where can I get it? (urgent, needed it two hours ago for a computer science class and it failed on me)

~BenDilts( void ); Received on Sun Apr 6 03:18:43 2003