yup - you just have to request to change your payment day - and need to be aware that, the first time you get FTB on the opposite week it will be an odd amount - as it won't be for the full fortnight - only for a week

so, if you got paid today and want to get ftb next Thursday, you'll only be paid 7 days. if you were paid last week and want to change it, they'll give you a small payment immediately (tuesday if you called tomorrow) to bring you up to date (again, 7 days) and then you'd go to one payment one week, one the other. you can ONLY change your FTB payments - baby bonus is apparently not able to be moved (which sucks for me cos i get baby bonus on monday before my mat pay from work on thurs - then the following week get bugger all FTB - sigh!)