Hey bloke,the frogs were some type of rocket frog,i think they were Litoria freycineti - Wallum Rocketfrog.
and sorry guys i'll have the pics up in a few days,i've been working non stop latley,and sometime this week i'll find time to do another search of the consruction area,and see what i can find,it's an interesting discussion about reptile release survival,if that's not the answer.. what is? because theres no point to letting them die,which a good majority would.