[slappy]

Access your server with an SSH Client or FTP Client. This is the program you used to get your vbulletin files uploaded to your server. When you are on the server, go to the folder where you installed vbulletin. It may be called "Forum", but you should have created it, so you should know what you called it.

In that folder you will see other folders. Usually it starts with /admincp. Look down that list of folders. There should be one named /includes. Open that folder. Inside you will find the functions_showthread.php file and you could download it, edit it, and upload it again, but there is an easier way.

You should have a copy of the /upload folder from the vbulletin download on your computer. Look in the /upload/includes folder and you will find a copy of functions_showthread.php, but you don't want to change the original.

Having located that file, you want to open it in a program suitable for editing php files. I use Ultraedit, but there are many suitable programs. After you opened the file in the editor, you make your changes and then save the edited file in a new place (different folder) so it will not overwrite the original file. You can then upload this edited file to your server and copy it over the original /forum/includes/functions_showthread.php file and you now have the edited file you require for your hack.

Regards,