On March 5, 2013, Wing Commander: New Horizon MUSH was shut down due to lack of activity. Thanks to the staff and players for your support. We had a good run and created some amazing memories. Keep in touch on the Facebook page for the game, which will be preserved.
The entire game's codebase and database (minus player information) has been open-sourced and released to the public, and the game itself is back up to help support the code at wcmush.com 2199!
You can board a ship using 'enter <name of ship>'. For small ships that only have a single cockpit, you can exit the ship using 'leave'. Larger, multi-room ships will have a 'disembark' exit somewhere on board to exit. Note you can only enter ships that you are on the 'crew list' for.
Once aboard, you need to find a console and 'man' it to start flying the ship, using 'man console'. Type 'help space' for more information on the space system and how to fly!
To see how much IC money you have, type 'cash'. All new players start with a small amount, but it's easy to earn more. If you've gotten an IC job, your character should get paid by their employer occasionally (if not, you should have a RP scene asking why you're not getting paid!), or you can also earn money by surveying celestial objects using a ship (see 'help survey'), and hauling cargo from place to place (see 'help cargo'). You can pay other players using 'pay <person>=<amount>' (see 'help pay').
You don't have to keep your money on-hand - you can use bank accounts to not only keep your money safe but also easily receive and send money to/from other players - see 'help account' for the commands.