Unfortunatly we have had a lot of people running vBulletin without a license, trying to get support or hire assistence using our Pre-Sales forums. Therefor our current procedures don't allow specific answers to a lot of questions in Pre-Sales, or Service Request (ie. request for paid assistence) made by users who don't hold a valid license.
I will, to get you the answers you need before purchase, sent you an email in a couple of minutes. You can reply with all the questions you still have unanswered, and i will try to answer them if i can. Please allow 24-hours for a reply from me.