To see what is happening, there are two test plugins available to test the functionality on the Twitter side of things:

1. vBulletin 2 Twitter: Test/Debug Module 1 - which tests to see if you are actually authenticating with Twitter
2. vBulletin 2 Twitter: Test/Debug Module 2 - tests to see if your Twitter Application is set to "Read & Write"

Your AdminCP's Plugin Manager, enable these plugins one by one, follow the instruction to change the userid to your userid and post the responses for both plugins here and we can see what is going on. Remember to disable them again once done.

Brilliant. Installed and working. :)

got it to work when I disabled short URLs -- with short urls enabled I got this error message

INVALID_LOGIN on line 193 in /home7/xxxxx/public_html/includes/bitly.php
#0 /home7/xxxxx/public_html/includes/bitly.php(382): Bitly->doCall('shorten', Array)
#1 /home7/xxxxx/public_html/newthread.php(277) : eval()'d code(40): Bitly->shorten('http://www.bout...')
#2 /home7/xxxxx/public_html/newthread.php(277): eval()
#3 {main}

Warning: Invalid error type specified in [path]/vb/vb.php on line 287

changed to default is.gd and we are golden!

not working i give all scrett key and other but not send to twitter in post

To see what is happening, there are two test plugins available to test the functionality on the Twitter side of things:

1. vBulletin 2 Twitter: Test/Debug Module 1 - which tests to see if you are actually authenticating with Twitter
2. vBulletin 2 Twitter: Test/Debug Module 2 - tests to see if your Twitter Application is set to "Read & Write"

Your AdminCP's Plugin Manager, enable these plugins one by one, follow the instruction to change the userid to your userid and post the responses for both plugins here and we can see what is going on. Remember to disable them again once done.

wtf? Since when can we "like" a post on vb.org? I swear I've never seen that before.

I have now updated the Frequently Asked Questions section in the first post to bring it up-to-date. So, please read the first post before posting, as 99% of all issues will be addressed in the FAQ.

Ha! It looks like basically you just added "Don't use bit.ly" to half the FAQ. A sound recommendation, but who wants to bet the next five pages will be filled with bit.ly related questions!

Installed without a problem, but doesn't post to Twitter.

bit.ly creates the links.

The debug tool gives the following error, so I can't get debug info:

"NULL
vBulletin Message
Unable to add cookies, header already sent.
File: /home/site/public_html/includes/class_bootstrap.php(103) : eval()'d code
Line: 11"

Any ideas?