Getting the application structure correct when using Warbler to make a .war

Hello,

The instructions in Warbler say that I should run it at the root of
the directory structure of an application.

The index.html ended up being not in the root directory of the .war so
it caused problems.

Here is my just-ruby server:

http://128.48.204.195:3000/
It works fine, but then, when I used warbler and put the war into
tomcat, here is what happens:

http://128.48.204.195:8080/blog/index.html
What is causing this kind of mis-match-ness of the directory
structures? How is this typically handled?

Thank you!