I made a video, that shows how to change the top pins and the springs, hey I just felt like sharing
The steps below should be followed, for best result!
#1)Pick the lock
#2)Turn the plug 180 degrees.
#3)Attach the hair-clip-tool, put it in sideways, and then slide it on
#4)Secure the plug with your thumb and then remove the retainer pin
#5)Gently let the plug come out, by holding the lock downwards, securing the plug with your index finger.
#6)Put the lock in your left hand between your thumb and your index-finger, to cover the hole in the middle
#7)With your right thumb cover the hole in the front, then move the hair-clip-tool to the side with your right index-finger.
#8)Let the pins and the springs fall out on a piece of cloth.
#9)Check all the parts in the lock, for any damage. (Now would also be a good time to Flush / Clean the lock)
#10)Take each spring with a pair of tweezers, and put them back into the lock, starting with pin-hole # 4
(assuming that the lock has a total of 4 pin-holes)
#11)Take each top pin with a pair of tweezers, and put them back into the lock, starting with pin-hole # 4.
(assuming that the lock has a total of 4 pin-holes)
#12)While holding the lock level, put the hair-clip-tool back into the lock, put it in sideways on top of the top pins without actually touching the top pins, then, push the hair-clip-tool down on the top pins, equally, do not let the hair-clip-tool twist, supporting the hair-clip-tool both in the front and in the back, keeping an eye inside the lock at all times, watching that
the hair-clip-tool and the top pins stay aligned, then with your eyes inside the lock, slide the hair-clip-tool back onto the housing
#13)Gently, with the bottom pins upwards, put the plug back into the lock, then, securing the plug with your thumb, put the retainer pin back on
#14)Slide the hair-clip-tool off to one side, and then pull it out
#15)Turn the plug until it locks
I do sound a little funny, but you will get over it... after about 6 min.

http://video.google.com/videosearch?q=wrenchman
I hope you liked my guide

Wrenchman