Hi Noel.
Welcome to the forum.
As said, the F/TF does have power steering and is known as EPAS and is electrically powered, involving NO fluids or pumps. It is a self contained system in the steering rack, with very little to check. A lot of the more modern cars are now moving over to this system.
As for the wandering, it isn't unknown for the F/TF to wander at speed, but it shouldn't be too obtrusive or feel dangerous.
Have a look here for some things to check http://www.the-t-bar.com/forum/22-cjjs-guides/24897-why-does-my-car-wander-some-simple-checks
Also, don't forget that this and many other helpful how to's can be found by clicking on the tab to the left of the screen. Have a nosey around and you will probably find something for every problem you have. Most people have been there before.