Like dralarms said, usually it takes 24 hours to get a good indication of fermentation with apple wine, I generally use K1-V1116 yeast with most of my wines. I pitched the yeast on a cranberry wine last night at 7:30 and just checked it before getting online. It is 66[FONT=Liberation Serif, serif]°[/FONT]F and it has a good head of foam with the SG down 10 points.
If it is still not wanting to start, I would suggest doing a yeast starter and adding some of the must to the starter in stages after re-hydrating the yeast. This will acclimate the yeast to the must before adding it to the primary fermenter.