Nearly all previous versions of SureThing CD Labeler are eligible for upgrade, including versions bundled with third party kits (e.g., CD Stomper, NEATO, Memorex CD Labelmaker and others); the only exclusions are timeout (trial) versions, 3M's "Printscape" version, and Modulex's "Signsoft" version. IMPORTANT NOTE: A non-trial version of one of the above products must be installed on your system in order to install the Upgrade version. The free trial version of CD Labeler can not be upgrade (you'll need to purchase the full version of SureThing CD/DVD Labeler Deluxe). Upgrades can only be purchased directly from SureThing, and are not available in retail stores. If you purchased SureThing CD Labeler Deluxe between March 1, 2003 and June 18, 2003 you qualify to receive a free download of Version 4.0. You may also purchase the upgrade on CD for $5.00 + shipping. You must be able to provide dated proof of purchase via mail or fax. Please contact customer support at 800-998-4555 or email sales@surething.com for assistance.