yes the camber and caster are not adjustable on the pathfinder.
Camber can be fixed by camber bolts, but I don`t think there is anything for the caster..
I would not worry about the caster unless your wheels don`t come back to the middle (straight) after you turn at a corner.. This would mean the caster is very out of specs and therefore there is something very wrong with your front end (like bent parts or something).
Hope this helps.
Ps : I use the camber bolts from ingalls ing (81260) :
http://www.ingallseng.com/81260-14mm-fa ... _pair.html
Cheers.
S.