or download this
SELECT me.id, me.conversation, me.from_user, me.message, me.timestamp
+FROM message me JOIN user from_user ON ( from_user.id = me.from_user
+ ) WHERE ( from_user.im_network = ? ): 'Yahoo'
SELECT me.id, me.conversation, me.from_user, me.message, me.timestamp
+FROM message me JOIN conversation conversation ON ( conversation.id
+= me.conversation ) LEFT JOIN conversation_user users ON ( users.conv
+ersation = conversation.id ) LEFT JOIN user user ON ( user.id = users
+.user ) WHERE ( user.im_username = ? ): 'linux_rohan'