Go to www.historytoday.com and log in. The username is Barbara Hibbert and the password is history1
Then go to the archive section.
The first article you want is 'Creating Elizabeth's Via Media' by RE Foster in issue 54, March 2006. You might be able to access it directly using this link
http://www.historytoday.com/re-foster/creating-elizabeth%E2%80%99s-media
There is also 'English Catholics in the Reign of Elizabeth' by Marie Rowlands in Issue 59, December 2007
http://www.historytoday.com/marie-rowlands/english-catholics-reign-elizabeth
and a reply to this article in Issue 62, December 2008 by RE Foster 'Elizabethan Catholicism: Questions of Perspective'
http://www.historytoday.com/re-foster/elizabethan-catholicism-questions-perspective