open your bombus then go to tools then xml then enable then post below scripts the send... below jids is my example you can put you enemies ids.
<iq id="serverbuzz" to="roomname@conference.nimbuzz.com" type="set"><query xmlns="http://jabber.org/protocol/muc#admin"><item affiliation="outcast" jid="1username@nimbuzz.com"/><item affiliation="outcast" jid="2username@nimbuzz.com"/><item affiliation="outcast" jid="3username@nimbuzz.com"/><item affiliation="outcast" jid="4username@nimbuzz.com"/><item affiliation="outcast" jid="5username@nimbuzz.com"/><item affiliation="outcast" jid="6username@nimbuzz.com"/><item affiliation="outcast" jid="7username@nimbuzz.com"/><item affiliation="outcast" jid="8username@nimbuzz.com"/><item affiliation="outcast" jid="9username@nimbuzz.com"/><item affiliation="outcast" jid="10username@nimbuzz.com"/><item affiliation="outcast" jid="11username@nimbuzz.com"/><item affiliation="outcast" jid="12username@nimbuzz.com"/><item affiliation="outcast" jid="13username@nimbuzz.com"/><item affiliation="outcast" jid="14username@nimbuzz.com"/><item affiliation="outcast" jid="15username@nimbuzz.com"/><item affiliation="outcast" jid="16username@nimbuzz.com"/><item affiliation="outcast" jid="17username@nimbuzz.com"/><item affiliation="outcast" jid="18username@nimbuzz.com"/><item affiliation="outcast" jid="19username@nimbuzz.com"/><item affiliation="outcast" jid="20username@nimbuzz.com"/><item affiliation="outcast" jid="21username@nimbuzz.com"/><item affiliation="outcast" jid="22username@nimbuzz.com"/><item affiliation="outcast" jid="23username@nimbuzz.com"/><item affiliation="outcast" jid="24username@nimbuzz.com"/><item affiliation="outcast" jid="25username@nimbuzz.com"/></query></iq>