You might want to read what i posted again, they WONT be logged out regardless of what your cookie is set to.
I appreciate your help, but I still see an error in your logic.... Here are the steps:
1. I created an account.
2. I logged into the account.
3. I physically logged out of the account i.e. I hit the "log out" button. I verified that I was logged out by noting obvious characteristics on the vbulletin template ("register now" for example).
4. I navigate to the above mention forum and next to each member is a "green" light saying they are "online now".
If the member is NOT logged into their account i.e. they are "not" online now ... then why is the green light still on..?