Okay, i uploaded all the 3 files to the respective directory, then run the install.php
At the step before go into Admin panel, i deleted the shout_install.php file becuz it asked for it.
then i clicked " go to admin cp" and the page showsup saying no such page. then i uploaded the shout_install.php again try to start over. Thhis is wut i got:

Database error in vBulletin 3.0.0:
Invalid SQL: ALTER TABLE usergroup ADD shoutboxpermissions INT UNSIGNED NOT NULL DEFAULT '0' AFTER forumpermissions
mysql error: Duplicate column name 'shoutboxpermissions'

mysql error number: 1060

This is a defected zip script. Please update the useable one.

how do would i go about upgrading from the old bvshoutbox ?

Yea nada in the forum home also for me.

Also...

Mike, you do not have permission to access this page. This could be due to one of several reasons:
Your user account may not have sufficient privileges to access this page. Are you trying to edit someone else's post, access administrative features or some other privileged system?
If you are trying to post, the administrator may have disabled your account, or it may be awaiting activation.

I am the administrator and I don't have access to the shoutbox.php on my forum wtf?

Read the entire thread. You need to set permissions to YES because the default for SB is no.

I didn't set any new permissions or anything. I actually just installed the sub forum hack and the shoutbox started working.

Weird.

change what usergroup permissions?? where, how???

can u tel me what changes need to be made to usregroup.php again please? I have modded it wrong and I cant re-install because it gives me a database error, so I need to get the settings from here,

and what usregroup permissions to I change to let specific usergroups use the shoutbox??

Are there any template mods for this great hack allready?