Here are some links to older threads that you might find relevent:
http://www.jehovahs-witness.com/topic/199543/anyone-practicing-catholic
http://www.jehovahs-witness.com/topic/96458/jehovahs-witness-catholic-conversion-stories
http://www.jehovahs-witness.com/topic/84045/fallen-away-catholic-comes-home-our-own-claude-kenneson