meegosh and joshua-
the intonation lock screw is a 1.5mm allen head not shown in your photos. it is behind (to the butt-end of the guitar) each saddle. in your photo, these scews are obscured by the strings. remove tension (loosen) the string your are intonating, next loosen the 1.5mm screw,next make your adjustment (saddle forward or back), finally tighten the screw again (careful, don't overtighten and strip the threads) then tighten your string and doublecheck your intonation.
the saddle height lock screws (same size) are shown above the saddles (in your photo). there is 1 per saddle. each should be loosened before doing any saddle adjustment (raise-lower). the 2 screws (same size again) on top of each black saddle raise and lower the saddle. loosen the lock 1st before adjusting, then lock it back down when adjustment is complete. DON'T GO CRAZY TIGHT! its steel (screws) into aluminum alloy. very easy to strip!
i went to a hobby shop (radio control cars) and bought a THORP brand titantium tip , plastic handled 1.5mm wrench for about 5 bucks , if i recall. much more precise, easier to handle and less likely to strip, crossthread or do any other damage than the cheapo L shaped hex wrenches. expend the effort and spend the few bucks. its worth it.
so, you ok with all that? and what da hell, why is this thread so wide on-screen ???
if you have any questions, if i've been unclear, just post and i'll try and walk you through it, best as i can.
good luck, duc