We use Flash Builder to build SMP. Regarding how to build in Flash Professional, have you checked http://osmf.org/dev/osmf/specpdfs/building-osmf.pdf ? I don't know if it solves your problem. We'll try to update the document if there are some missing steps.
Thanks for the quick response. I had not seen the building-osmf.pdf file before. Upon quick inspection it seems to be based on CS5 and not CS5.5 and the font issue that I am running into does not seem to be mentioned in the document. Once I figure out the font issue I'm having, I'll update this thread.