Identification numbers (id) from 0 to 100 are reserved for system. These id numbers doesnt affect anything. Adbot (id12) is advertising bot. it will never answer to any questions :)
But Snow support (id101) are always ready to answer all your questions. Enter 101 into search form and press search button, then agree to add (id101) to your friendlist. Doubleclick it to select him as receiver for your message and chat.
All chats are PRIVATE, just shows in one non-separate window.