Ok I have uploaded the latest BETA version of the application. It should work great as I have spent quite a bit of time on it.
To install just import the .sql file in the setup directory and configure the scripts/inc.config.php file then add a crontab entry and specify the file to run as follows:
/1 * * * php /path/to/phpDHCPAdmin/bin/cron.restart.dhcpd.php 2&>1 /dev/null