[Setup] Help with ExternalStorage

[Henrik W.]

I don't have a lot experience with Plone 2.5.1 yet, but I need to store 
uploaded files on Windows Filesystem instead of the ZODB.

ExternalStorage seems the perfect solution, and the readme.txt suggest to 
install the ExternalExample as a product. I did so, but files are still 
stored in the ZODB. Which tasks do I need to go through to store the files 
correctly?

Thanks in advance
Henrik W.