I'm running the 0.10.2 build from the .dmg file for Mac on Mac OS X 10.3.9 and the Instiki.app seems to start up fine (I get the "Wiki" menu item), but going to http://localhost:2500 results in a "server not found" error. This is the message in the console.log:
2005-08-11 11:50:23.486 Instiki[553] starting /Applications/Instiki.app/Contents/Resources/ruby -I '/Applications/Instiki.app/Contents/Resources/lib/ruby/1.8' -I '/Applications/Instiki.app/Contents/Resources/lib/ruby/1.8/powerpc-darwin' '/Applications/Instiki.app/Contents/Resources/rb_src/instiki.rb' --storage='/Users/macuser/Library/Application Support/Instiki'
2005-08-11 11:50:23.487 Instiki[553] started child process: 554
2005-08-11 11:50:23.501 Instiki[554] set child (554) to pgrp 553
dyld: /Applications/Instiki.app/Contents/Resources/ruby Undefined symbols:
/Applications/Instiki.app/Contents/Resources/ruby undefined reference to _lchown expected to be defined in /usr/lib/libSystem.B.dylib
I haven't seen a library problem like this before on my machine. Just to check, I've downloaded the 0.10.2 instiki zip file and run Instiki directly from ruby and that version seems to work just fine.