Hi Tamsy
I enjoy taking Milky Way photos, I am no expert, but here is my two cents worth.
In August the Milky Way rises in the South Western sky. The Milky Way is high in the sky between 21h30 - 23h30 then it starts to drop down below the horizon. The best days for photos are the first three days of August and then from the 20th August. Between these dates the moon is also up in the sky and washes out the stars in any photo. I use the "sky safari" app, it's worth a look.
As far as the camera setting go,
I use a wide angle zoom lens, usually set at a focal length of around 24mm
The wider the better as far as aperture is concerned, my lens has a maximum aperture of f4.0, a f2.8 would be better.
As far as ISO setting go I take many photos and vary the ISO between 2000 - 4000.
My exposure time is usually between 20 - 25 seconds, any longer and you will start to see blurring caused by the movement of the stars.
Obviously a tripod id required to get sharp photos. Be careful of light pollution from the camp lights.
Attached are a couple of Milky Way photos.
Christine