Questions on computer version - MegaTraveller

[Resent to [email removed], the correct address - James]

  I have a beginner type question on the computerized version of the
  game MegaTraveller.

  1) I am having a hard time being able to control my spaceship to land it on
  a world.  I haven't found the instruction manual very helpful.  I wind up
  running out of fuel before I can land anywhere.  Sometimes I can get close
  to a world, but cannot land on it.  I even find it difficult to navigate well
  enough to get close to a world.  Any suggestions?

  Also, what are the PBEM's mentioned in previous bundles?