Pius Roman

what is the Order of Pope Pius X? Is it really Heretic, Falsified Teachings, Excommunicated and Invalid Order?
Is their sacraments performed invalid/not recognized by the Roman Catholic Church in Vatican/Rome? Are they now in good relations with Pope Benedict XVI?
Explain please…Prove it!!!
This is the order started by Bishop Lefebvre who had a falling out with the Catholic Chuch after Vatican II. The society is currently working to return to full communion with the church but has not reached that point yet.
Their web page is: http://www.sspx.org/
And here is the report by the ecclesia dei commission (of the Catholic Church) on the society: http://www.ewtn.com/library/CURIA/CEDSSPX.HTM
Cardinal Pacelli and the Roman Catholic Fascist “Church”