Is this the original file, or is this how it has been edited? I did an article on handling highlights a year or so ago...not my best piece of work in terms of lay-out, but it gets the job done (it was the first NWP article).

http://www.nwpphotoforum.com/ubbthreads/JM_Pieces/Highlights/Highlights.htm?Cat=0

Hope this helps!

James