Welcome. you're going to really enjoy it. The factory break-in is on p.15 of the ST manual. It basically says no extensive break-in is needed and to vary your speed frequently for the first 1000 miles. My mechanic friends also say don't hammer it, don't baby it. One of the threads referenced above has a much more extensive break in procedure that one member recommends.
The factory fill is typically Motorcraft 5w-20 synthetic blend. Fyi it sometimes has a color die to aid in leak detection. This has freaked some people out when they drain and look at it. I would recommend going to a high quality full synthetic oil, in the same viscosity, at the first oil change.