http://scn.sap.com/docs/DOC-41766 concept for bigginers
RSQIWKEX to reprocess failed message queueshttp://scn.sap.com/people/community.user/blog/2005/11/29/xi-how-to-re-process-failed-xi-messages-automatically
http://vpiqaap2:51400/webdynpro/dispatcher/sap.com/com.sap.xi.exprofui/XIProfileApp