I always start from pointing south and move the dish to the east until I get a really strong signal on the meter.
I then move to the east further until I get another close strong signal (these are strong analogue signals)
I then drop the dish a degree or two and continue to the east until I pick up Sky digital
I have a compass with a line marked at the appropriate place for the satellite as well so that when it is on north the line is roughly where the satellite should be
Once you have the angle of inclination in UK its a matter of finding the satellite and playing the angle and direction off against each other.
As has been said before sometimes the box will lock up when it is on the satellite so you have to re-boot by unplugging for a few seconds
One thing that happened this time that has never happened before was that I got the signal strength bars on the services (6,4) but the transponder stream numbers were all wrong and it said 13 degrees east.
I took that to be Astra analogue so I lowered the dish (as I said before) and continued east until the right satellite was found
Just mentioned this in case it happens to you
Best wishes