Cheryl, is offering good advice, that site is Hell on earth.
Yes, the site has much good information, just like the :devil2:
he gives you something attractive then you are trapped. They are outside the Church because not only of their judgement toward their fellow Catholics; mainly they deny Church teaching, they deny Baptism of Blood/Desire. Although the Church teaches and has always taught BOD/BOD, since the beginning when Christians were tossed into the Lions den, without water Baptism, and became Saints, many canonized, because they died for Christ while desiring baptism.
They appear to be ever so Catholic, but the things on their web site that are correct are copied from other acceptable web sites.
These Dimond brothers truly give sedevacantist a very bad name, which is exactly what the devil wants.