You get that warning for one of 2 reasons:

1. Your document root directory (ie. public_html) is not chmodded to 777 or 775.

2. Your document root directory is not "owned" by your hosting username. Do you have SSH access to your server? If so, we can change the ownership for the script to install properly. If not, we can ask your host to "chown" your document root to your hosting username.

Failing that, you can install via the manual method -- it's a little tedious, but it works perfectly.

If you need help, post on http://www.ddlcms.com/forums for faster support.

Of course we can do the installation on your host for you free of charge if you still have any problems.