TeachMac has announced a major update to its tutorial software TeachMac and TeachIT for Windows. The 2007 edition’s features include native resolution display of video (including HD), the ability to see all module topics lists prior to downloading the modules, the ability to edit custom modules, and an Advanced Search feature that allows users to search through all library content. In addition, Module Maker, the application that allows users to construct modules, has been updated for both platforms. TeachMac is also announcing a US$199 lifetime subscription or $299 for two lifetime subscriptions available to the first 100 customers. This offer is available now through the end of Macworld Expo (Friday, January 12, 2007).