I have installed request tracker v 4.0.8 and everything is working. Now I'm trying to integrate it with Active Directory 2008. I used this DOC: http://requesttracker.wikia.com/wiki/CentOS5InstallPlusSome
But unable to get it working. The RT weblogin doesn't even check for the AD server. I can't find any logs regarding to it. I have already seen a question here in serverfault regarding active directory and Rt, but it was for old version and I'm using a new version.