This is the contents of my Deferential Geometry folder.

backup
   holds backups of the wiki, if you choose to create them.
bare
   a bare version of the wiki
download
   a place to keep files to download, such as fonts
favicon
   URL bar picture
images
   images used in the wiki - probably want to delete some
index.html
   this is my wiki, with all my notes in it. you can add to this and make it yours, but you probably don't want all my notes!
jsMath
   this holds the scripts and font images that make jsmath work
log.sh
   shell script to log access (edit for your domain)
logs
   access log goes here. needs to be writable.
papers
   pdf papers I store locally, linked to by the wiki
README
   you're soaking in it
store.php
   this is the script that lets a remote editor upload their edits to the server

To make and use your own wiki, you'll probably want to copy one of the "bare" wikis to index.html, then make that one your own by opening it in Firefox and playing with everything. Most of the tweaking of the tiddlywiki is described in the "Configuration" note.

Have fun! It takes a while just to understand what the heck is going on. (Yes, all the wiki entries are IN the html file. Magic!)

You'll want to install some fonts from here:
http://www.math.union.edu/~dpvc/jsMath/download/jsMath-fonts.html

-Garrett Lisi