Your ph yes should already be adjusted and most likely it is already sulfited. Is it innoculated already with yeast. If not get some.
Let the juice warm up a bit and add pectic enzyme. 3-4 drops per gallon. Let it be for 12-24 hours aside from an occasional stir.
Add your nutrients and yeast. Ferment to dry. There is a tutorial on how to ferment your wine. Go to Home>Tutorials
I have a Regina Petite Syrah and Merlot fermenting as we speak. Just bottled a Pinot Noir from last year.