I would like to use this but I need some guidance in determining what these fields should be:
I look forward to getting this set up.
Hostname : Database hostname of your WordPress site (Usually localhost if both Joomla and Wordpress installation are on same server.)
Database name : Database name of your WordPress site
Database user : Database user of your WordPress site
Database password : Database password of your WordPress site
You can find all these details in wp-config.php file of your WordPress installation.