I uploaded the SQL file that came with the install and pasted it into phpMyAdmin and hit go. Now everything works perfectly!
I doubt that. The sql file does not contain the nescessary data and can not be installed the way you did. Go to administartion > server > settings in ispconfig, change a setting and click on save. Go back and check if the edited setting has been saved. If yot, you will have to reinstall ISPConfig completely or play back a backup of the original database if available.