Well. it seems that almost the entirety of the 1558 Act of Supremacy has been repealed (and potentially replaced / upgraded) by the 1848 Statute Law Revision Act.
unfortunately, the text of the 1848 Statute Law Revision Act is not available online, as best i can find. i will find a copy.
http://www.statutelaw.gov.uk/content.aspx?activeTextDocId=1518143
http://www.opsi.gov.uk/RevisedStatutes/Acts/aep/1558/caep_15580001_en_1
