You still need to download the most important thing,
the Stellarium planetarium program. The small sh4tostellarium program (on the filefront page) takes your location from a savegame, and sets up a config file for Stellarium for the right observation location. In Stellarium you measure the celestial object heights (altitudes) above the local horizon. Then with those numbers you must do some numbercrunching with the tables and worksheets in the back of the almanac. Then you can plot the results on the map. There is nothing that needs to be changed to Sh3/4 files. Except if you do want to hide the sub icon. But that is not required. Also no camera tweaks or interface modifications. Ctrl-click also works if you need it.