If its just to raise the one side slightly its pretty simple
Although you can gain access to the adjustment shafts by removing the caps on the headlamp bezels, the easiest way is to simply remove the entire bezel. Take out the 3 screws and slide the bezel out from the front. If you changed the headligh bulbs you probably already removed them. There are two adjusters. They have reversed torx heads located at the ends of short metal shafts. The first for side/side (horizontal) adjustment is located right behind the high beam and would have been completely visible and accesable if you had removed the circular cap only. The second adjuster for up/down (vertical) is located slightly below the one mentioned above and closer to the back of the low beam bulb.
I would pull the vehicle up to a wall or garage door about 15 feet away and mark on the wall surface with tape or something removeable the outline of the light pattern you want to change, and make the minor adjustment. Just make sure when your turning the adjusters that you turn them slowly and do not overturn or force them, they are plastic gears and will strip if forced. Make sure your watching while your turning to ensure your adjusting the correct direction.
If in doubt, take it in for the headlamp adjustment.
I also installed the silverstars a few months back. There is a noted difference in the light projection patterns versus the eom halogens. The light is whiter and more defined as it hits the roadway, even though its going thru the same lenses as the eom bulbs. I think you get used to the difference over time.
MAC