DD was posterior but because she was my first baby, I had nothing to compare to and honestly thought that although the pain was a bugger, it was kind of within the threshold of what I expected.
What really stuffed me up was the fact that I'd been in pain for three months beforehand with SPD (bad pelvic pain) so by the time labour came around, I was COMPLETELY OVER pain. The epidural was the only time in 18 months (pre-baby and post-baby) that I was pain free and it was bliss.
As for positions, I can't say I found one that was better than another but will be interested to see what other people say.

