I'm sure there are, but you need to get hold of the local paper to check it out, seems no-one is around to reply to your request.
If you are making your way to Townsville and you haven't secured any accommodation and are not receiving any help, you may like to book into some backpapers temporary accommodation until you secure something permanent.
Most private accomodation require at least 2 weeks up front rent and generally 2 weeks bond.
The Uni/Tafe generally have a notice board, but that doesn't help you at this stage.
Anyway, there are some cheap backpackers or even caravan parks around until you get your feet on the ground.
Hopefully someone in Townsville will help you out.