You can use the one from their website just fill in the applicable details I.e. don't worry about insurances, emergency plans etc. as this is for organised events/activities such as orienteering or endurance competition's & the like as they have numerous people involved & appropriate insurance, safety & emergency plans are required.
Just fill in your details then:
Name of forest: All NSW forests
Type of activity: Fossicking
Time/date: various over 12 month period
Is vehicle registered/insured: Yes
Sign & send in. Should be all good.