The default mode is to just build ships out of thin air. However, that's not very realistic. So there are parts included to allow you to mine ore, smelt it into metal, and build it into rocket parts which you can use to build a ship. To enable resources mode, just change the line debug = true to debug = false in the launchpad's part.cfg. Note that if debug is off, you will need all resources for a rocket - liquidfuel, oxidizer, monopropellant and electricity - before you can build it. Also, you will need the scanner from the kethane pack to locate ore deposits. THIS MODE IS EXPERIMENTAL. I've looked for this in the .cfg... can't for the life of me find it