You could also run the game under Wine, as far as I am aware it works fine.

Yes... By modifying it how? Because as far as I can tell HEX editing shows nothing useful. lol
Regardless, may give the file a try later, takes far too long to unlock them through legitimate gameplay.

It's a stealth ship... It's designed for stealth not extensive combat situations. lol

Alex - Right-click the link and click "Save Link As" (may differ in name for other browsers).

I am curious as to how you achieved unlocking the ships in question though.