Do you want to change the version of BeOS displayed in the About BeOS box? If you do, it’s just a simple matter of hacking around with system-level libraries!
Navigate to /boot/beos/system/lib in Tracker and open up libbe.so by right- clicking on it and selecting Add-Ons | FileType. Change the „Short Description“ field to your liking, then save the file. That’s it. The text you entered in will now be displayed as the System Version in the About BeOS box.