Ok, Before posting stuff in the forum please read the readme.txt in pretty muhc every infusion... Run FB4 install by going to http://yoursite.com/infusions/fusionboard4/install.php... This was told in the readme
No, What is your website URL? Put it in http://www.yoursite.com/infusions/fusionboard4/install.php, Replace www.yoursite.com and replace it with your PHP-fusion Infusions folder root.
We don't support Fusionboard here, you have to ask whoever did that, I hope you will find the link to the FB where you dpwnloaded it or in the package it came in.
Since you apparently has your site up and running, I close this thread.