Just for information, on the bottom pic, the bottom adjuster shows a big grey knob. This ISNT the adjuster. Adjustment is achieved by means of the small thin shaft that sticks out of the grey knob. It has a 4mm Hex end. Dont wind it too far ( like the guy at the garage did when I took mine to get adjusted ), cos it all falls apart!
The other adjusment screw, is the philips screw at the top.
Best way to adjust em, go to a garage with a lightbox. A £5 gets it done
As for adjusting the main beam, never bothered, cos I didnt know they did lol.
Park infront of a garage door and do it for £0..
I did mine and they looked ace with a bit of fiddling. I would use the grey knob to adjust it though because if you only spin the hex bolt it will pull itself off of the white stabiliser arm (look inside) and when you go over bumps it will jump about.