Go to gamewinners.com
and get the trainer that gives unlimited resources to all players, use it in a skirmish. You'll be building a massive fleet in seconds, but so will the computer. Just stay on your toes and you'll be enjoying pulsed ion beams and missile orgies and space acrobatics in no time. Also, you might want to read up on some of the "documentation" for PDS. Playing the mod is very different to playing the game. For one, direct attack commands fail hugely, so just don't use them.
Supposedly, the mod allows for far less micromanaging. Ships will fly around, attack things, etc all on their own once engaged in combat. In practice, you'll want to keep a close eye on your major assets and you might want to learn waypointing so you can do mad insane shit with the Liir'hra and the gunboat frigates.