O.k., I haven't played the demo so i'm going out on a limb on this one. As far as I've heard you can only buy liberty ships in the demo. So, have you tried to get frendly with the pitate factions? they have ships too. I would give you more info on 'where' to find the ships (i.e. where the pirate bases are) but that would be a spoiler wouden't it? Wrong forum for that. Oh, and unless they dont have it on the demo you are missing one ship you can buy from the "good guys"...

If I had a nickel for every time someone told me that my idea for melting down coins to make a giant robotic parrot was a bad idea, I would have one kicka$$ giant robotic parrot.

I already know the locations of all bases except for everything in Zone 21. The ships at pirate bases require higher levels.