ssis convert ddmonyyyy dd/mm/yyyy

Hi guys trying to convert 16JAN2014 --> 16/01/2014. Any ideas??? i'm trying to avoid the horrendous expression of ? JAN : 1 ? FEB : 2 etc. etc. SSMS will quite happily do SELECT MONTH('16JAN2014') to get me the number of month however MONTH( "16JAN2014" ) will not work in SSIS. hmmm... tried code but keep getting error below...