Yves, I worked out how to navigate to the right directory and I input the command lines you listed. I now have a home icon at top left of my home screen, but the app list is empty. Could you tell me how I should get the Xterm client in the app list?
While going through the command line instructions, I kept getting requests for overwrites, which suggested that the install had somehow already run once. However, I couldn’t find the postscript.sh script in the hack file, or anywhere else in the three folders that the hack unpacked into.