Can this even be installed on OSX as I don't see a download version nor do I see it in the Technical Requirements on the Demo page:
Demo Page wrote:Technical Requirements.
Dolphin requires at least 20Mb of space and 1Mb of MySQL DB space for installation.
Your host must have any Linux/Unix OS (RedHat, Debian, FreeBSD, Mandrake, etc). NOTE: SAFE_MODE must be OFF, register_globals must be OFF.
Or Windows OS with Apache Web Server, MySQL and PHP (WAMP).
PHP version 4.3.6 and higher with XML and XSL extensions and with mbstring support, exec() must be allowed, allow_url_fopen must be On;
MySQL version 4.1.2 and higher;
ImageMagick (for photos resize) or GD Library as an alternative;
Cron Jobs (Shell access (SSH) or other access to set Cron Jobs (CPanel, Plesk)) for Linux platforms.
Otherwise you will not be able to install and operate Dolphin properly.
This may be why you can't install it.
Link to Dolphin Documentation in various languages:http://www.boonex.com/trac/dolphin/wiki/DolphinDocs
This from their Q&A to a question:How do I install Dolphin
Please follow detailed installation instructions for Dolphinhttp://www.boonex.com/trac/dolphin/wiki/DolInstallation
BTW is your XAMPP installed correctly and in working order?
Can you access the Welcome Page and the demos from http://localhost
If so then future requests for help with third party script installation should really be addressed to the script author's web site for perhaps the best help available.