Hi Abdulla Albinali.

You really need to read the manual5 about programing the Flight Management Systems. Get the manuals here: http://www.captainsim.com/products/x757/manuals.html if you don't already have them.

OR

Go here: http://www.captainsim.org/yabb2/YaBB.pl?num=1220997876 and follow what it says to do to do the tutorial. This will show you enough to get you flying using the autopilot. I did the that tutorial flight, quite a few times, when I first got the 757. It taught me enough to fly anywhere I wanted to. From that point on, I asked question and read the manuals (ESPECIALLY manual5 about the FMS) alot. The rest was trial and error (lots of them).

There is a lot of advice and help in here, you just need to search for it.

It is hard when you first start, but it does get easier with practice (well it did for me). Don't worry though, I still make a few mistakes here and there.

I hope this helps.

Mark