I think james jealous is a cranial osteopath, he mainly teaches cranial and biodynamics if I can remember correctly. There are some lectures on his website based on what he actually teachers in the further reading section. Also there are some good books based on primary respiration and cranial osteopathy on his page as well.
Sue Turner in her Osteopathy1000 interview mentions him and thanks him for having "alerted us all to the presence of the archetype of the embyro". She talks about this about 1/3 of the way through the interview.
I did some googling after and found this site which lists some of his history & contributions.
As stated before James Jealous works with a "developed" cranial system that he has named biodynamics. There are several cd:s made with mr Jealous talking about his view on osteopathy in general and cranial work in detail. They are not expencive and I can really recommend having a listen to them if you don´t have the chance to attend his "live" lectures.
Also it's worth reading up on the UK BioBasic's course- I attended that a few months back and found it pretty intense but very interesting. A worthwhile course if you're interested in developing a new level to your cranio-sacral work.
I was a huge skeptic of cranial osteopathy, however James Jealous' bringing together and interpretation of Dr Sutherland's later work is awesome. Even for those not particularly interested in cranial or biodynamic osteopathy, his CD lecture series has some fantastic insights not only into indirect techniques but the philosophy of osteopathy.