[Tanapangarap]

Col,

You have to use an FTP program like Filezilla or CuteFTP to edit the file "class_userprofile.php", which is located in the directory "/includes/", with the first "/" representing your "root" directory, or your first/top directory (you should see it after logging into your website).

I assume whoever is hosting your forum has allowed you database access. If you're not sure, you should ask your host; from the host, too, you can get the user name, password, and FTP address you'll need to login (the latter is usually ftp:// followed by your site URL after "www.").