Where do the members and churches of SSPX fall within the scope of the Church. I have heard different stories? One is that if you attend mass knowingly that it is a SSPX rite you have to attend confession because it is a sin.
The following links should assist you in better understanding the SSPX's standing within the Catholic Church. If you have any further questions or concerns that are not answered by these links, please contact Catholic Answers directly.
]Is the Society of St. Pius X in schism?
*]Does the SSPX have valid sacraments?*