How to change the 404 page using a Roxen 2.x webserver:

1. Log in into the administration interface
2. Click on the 'Sites' tab
3. Choose the site you want to change the 404 for
4. Click the 'Settings' button
5. The fourth editable variable is a textbox with the text 'No such file message'. Here you can put the full source code for your own 404 (if you like you can even include RXML code)

   Thanks to Olaf from ETSV Scintilla for this tip!