Thanks for your replies bikebum, but I still do not understand why the Surly rack won't work. It has hardware that mounts below the point where the suspension tubes enter the fork.
Ironically, I have already ordered the Jandd rack that you are recommending, but I am planning on returning it as soon as it arrives. The reason is the rack is only rated for 25 lbs of cargo and I will be carrying around 25+ to 35 pounds over hard packed trails with occasional ruts at speeds of up to 25 mph. The Surly rack is rated at 70 pounds.
The morning after I ordered the Jandd rack, I broke one of the supports on my Topeak rear rack which is why I have decided not to use the Jandd rack. The construction is very similar, where the Surely rack is made of Crome-Moly instead of aluminum.
Can anyone see a reason why the Surly rack will not work on a suspension fork?