Copy everything in your existing DesignCAD directory to a new directory. Then unzip the files into one of the directories. Start the new directory DesignCAD and set the paths (setpath command) to the new directory or it will still look at the old directory for information. The manual changes are in the *.pdf file, print them from Adobe Acrobat (free download if you don't have it at www.adode.com) Be sure that the Designer Plus with the new files and DesignCAD are working properly then delete the directory with the old Designer Plus files. If you have made a shortcut for DesignCAD in the Windows menu install the new files in the existing directory, so you won't have to make a new shortcut. The Cab.bsx has also changed but this file contains your serial number. Please email me and I will send you an updated file with your serial number in it. These are the latest and perhaps last improvements to this version of Designer Plus, however I will fix anything wrong with this one for as long as necessary. A new version setup for texture mapping is now avaiable. It draws in the same version of DesignCAD that you have, but will require DesignCAD 2000 to use the texture mapping, and any pre-drawn symbols you currently have will no longer work because of the layer changes.