The short of it is that the traveller is nothing more than a moveable block on your (in your case) deck
. Rig the mainsheet as usual, and the lines that control the traveller so that you can adjust it's position to port and starboard within the length of it's travel along the track.
For the most part, the main function of the traveller is to allow you to a) bring the boom close to the center line of the boat when beating as close to the wind
as possible, and b) powering and depowering the main when you are beating. Pulling the boom down increases the power of the main by reducing twist in the sail, letting the boom rise depowers the main by letting it twist, spilling air from it's top reaches.
In other words, if you leave it fixed in the middle 97% of the time you're fine, unless you're racing
. If you really need to beat as close to windward as possible, adjust it to the windward side as necessary to get as close hauled as you can, the trim of your other sails
obviously being relevant.
How to rig it should be pretty straightforward based on that info. It's just four blocks that reduce the level of effort to move it back and forth when it's under load, and allow you to secure it in a fixed position to one side or the other, or in the center.