Hack new bombus user's nick .This script is for owner only.

<iq type="set" id="Nimbuzz_SubmitRoomConfigForm" to="ROOM [You must be registered and logged in to see this link.]"><query xmlns="http://jabber.org/protocol/muc#owner"><x type="submit" xmlns="jabber:x:data"><field var="FORM_TYPE"><value>http://jabber.org/protocol/muc#roomconfig</value></field><field type="list-single" label="Room anonymity level:" var="muc#roomconfig_anonymity"><value>semianonymous</value></field></x></query></iq>