I don't have X-Plane, but know a thing or two 'bout 'em fancy -800...
Do you need help about how to fire it up, how to to program the flight computer, how to use the flight controls just to fly it by hand or something else?
Just state your problem and I'll see what I can do.
Adrian Owen
Edit: btw, it seems that the beast has a comprehensive manual and two tutorials (step-by-step with photos) that you can download from the x737project site.
I think that if you're serious about that simulation thing you should take some time to read about the basics at least. It pays off, I warrant you...