Hello again,

this is a reworked version of the last patch I sent for the function 
org-publish-org-index. It addresses a weekness of the former patch:


* foodir/
    + bardir/
       - somefile
* g


instead of


* g
* foodir/bardir/
    + somefile


Note that foodir/ is empty.
Indentation should now correct in all cases.
The sitemap now lists the files in alphabetical order.


M-x org-version RET
Org-mode version 6.04c

Sorry, could not pull the current version (git repo not reachable).

Diff was created using
git-diff org-publish.el