After you activate the TrustID software, depending on settings, you may find that your software is now in a Trial Period mode. At the top, you will see it say the number of trial days remaining. You can disable the trial mode by clicking on the Assist tab, then clicking the Disable trial period button. You will have to restart TrustID for this to take effect.
When the software is not in trial mode, then the Disable trial period button will not be available. You should see it display the correct edition level at the top. To verify the serial number of your license, you can click on the Assist tab, then click on About TrustID.
On this screen, you will be able to see the subscription status, as well as the edition, and serial number of your license.