Hi everyone,
The version of Skyroads available here has some dots filled in on the progress screen, from the previous player I suppose. Also, the music doesn't play (for me in Dosbox on windows 7, at least). The game is available from the original developers here:
http://www.bluemoon.ee/history/skyroads/
which fixes both of these issues, so I suggest replacing the one currently on Abandonia with that one.