Thanks one and all for the great comments, I really appreciate it.
Turns out I missed a whole bunch of changes in 1.17!! I'm so embarassed.
Keep an eye on the Tutorials/Help section of the Civ3.com website. Very shortly they will be putting up an updated version of this file in which I included all the updates for 1.17 and 1.21.
The update also includes graphics on the Wonder page, which is now two pages actually, one for great wonders and one for small wonders. Thanks to Alanus in France for originally doing that layout work in the French version of this file which he made.
Also, the new version soon to be on Civ3.com includes a redesigned Resources page, which includes the terrain for Strategic resources, and groups the resources into Strategic, Luxury and Bonus resources. Both of those are changes people have wanted for a long time.
There are also a couple errors corrected in the new version, some of which are just updates to bring the file in line with patches.
--LW