Hi Daniel,
Basically the process for using a laser collimator is:
Insert collimator into the focuser and turn it on. Being careful not to get the laser in you eye, adjust the secondary mirror screws until the laser is in the middle of you primary mirror. Now adjust the primary mirror knobs to make the laser return back up the scope, off the secondary mirror and back into the hole where the laser comes from inside the collimator (some have targets around this hole to help). The last part is the trickiest part.
Once this is done you "should" have a well collimated scope. But unfortunately there are many variable such as; is the collimator collimated, and is your focuser centred....
But this process will get you much closer than you are now.
Hope that helps.
Dave.