Once you have postponed your event you will need to list the new date, but this is easily done by selecting the link at the top of the page following the completion of your postponement.
Select 'Next: Click here to create a new event listing for your rescheduled date, so we can move your tickets across.' and this will create a new listing for you, copying all the information attached to the previous date.
Following your postponement, Skiddle will move your tickets over to the new listing and you will receive an email when this has been actioned.
Disclaimer: This article contains information applicable to this Promotion Centre. If you have access to BETA test please see here.