Hiding elements

I need to hide the Toastmasters International logo displayed in Advanced iFrame on this page: http://d37toastmasters.org/find-a-club/.

I tried diferrent variables in Hide Elements field, but nothing seems to work. The source used for iFrame is http://reports.toastmasters.org/findaclub/default.cfm?Country=United%20States

Thank you,

Jake

http://wordpress.org/extend/plugins/advanced-iframe/