You will find a fairly good description of how to create a
testvb set up, with a copy of your database here:
Step by Step: Create a test forum based on a 'snapshot' of your live one
http://www.vbulletin.com/forum/showthread.php?t=252648
It's not the only way to do it, but it is a good description of one way that will work.
You can find information on how to .htaccess protect your testvb folder on these sites:
Password protection with .htaccess:
http://www.freewebmasterhelp.com/tutorials/htaccess/3
http://www.sitedeveloper.ws/tutorials/htaccess.htm
http://www.javascriptkit.com/howto/htaccess7.shtml
http://www.webmastersguide.com/htacc...s.htm#password
Regards,