this is correct, users of TurboPrint 1 need an update license keyfile for the new version 2 of TurboPrint. TurboPrint 2 contains major improvements and many new features. If you are still satisfied with version 1 and are not interested in the new features, you do not need to update.
TurboPrint is just a printer driver. Scanners are completely different devices, even if they are built into a printer. However, you can use most scanners with the open source project "SANE" (www.sane-project.org