I've been speaking with Snuber on Facebook about this absolute shocker of an application!! They haven't got the system sorted for overseas applicants yet - I'm presuming they know that you are overseas?
I've sent off for my police check, so time is ticking for me to get some answers too - but this is what I am thinking of submitting for my identity:
Commencement - Full Birth Certificate
Primary ID - Passport
Secondary ID - Drivers Licence
Secondary ID - Bank Card (it says these are accepted? )