I have this loaded onto my Android tablet. But the problem I'm running into is that my mouse is within the viewscreen (for directing the ship). But I have no other controls.

According to the manual the game was mouse driven (which I do remember when playing) but my mouse is stuck within the viewscreen and I have no way to launch a keyboard.

ok, got that figured out.

you will have to place the "virtual buttons" on the screen. Map one to the TAB key. this will let you toggle in and out of the viewscreen.
And by the looks of it map a few others but I got it figured