Is it that things are blurry or what is the trouble focusing? The auto focus is much easier to use while you get to know the camera. There is also a vision correction dial that is a really small dial on the upper right of the view finder on the XT, I'm not sure if they are elsewhere on the other models. This helps a bunch on manual focusing, but if you put one of the squares in the view finder on a line of the object you are focusing, you should get an "in focus" confirmation beep.
And yes a tripod is a must have IMO.
Outside of that, I need more info
