(...) I'm using what appears to be called BrickOS 0.9.0. It was installed using John Hansen's simplified installation from his BricxCC sourceforge site. I was under the impression that on later versions of BrickOS, like what I am using, the firmware (...) (17 years ago, 17-Jun-07, to lugnet.robotics.rcx.legos)
(...) Yes, that should be the latest version. (...) That is correct. You shouldn't need to do anything else. At one point, I made some changes to the firmware so the program could also access the run button. But, normally all that is handled in the (...) (17 years ago, 17-Jun-07, to lugnet.robotics.rcx.legos)