Hope you can get her to turn for you Fiona, GREAT to hear that you can give birth okay to a posterior bub though, because my little darling is so far shaping up to do the big 3/4 turn Well I hope it still turns! And I have been sitting fwd, and crawling about and scrubbing floors, and I haven't sat on the couch for ages.

A friend suggested I move to the northern hemisphere, if babies work like bathwater, then it might only turn 1/4 to get out...not so sure about that one

My birth centre give sterile water injections which (although they sting at first) can give from 40mins to 3hrs relief for a back labour.

I guess we just have to do everything we can, without the stress of becoming obsessive compulsive about it (I was sleeping exclusively on my left side, and I was ready to amputate my left hip! Now I sleep on whatever side is comfy {currently neither })
Let me know if something works for you though!