Pope comments on the use of condom: A change of Church position against the use of contraception?

A big question mark when the pope said condom could be allowed to be used by "male prostitutes". After strong oppositions in the use of artificial contraceptives, is it proper for the pope to make such comment? More is on the existence of "male prostitutes." When the pope made the said comment, is it proper for him to make them as examples? It sounds like male prostitutes are accepted by the church which is more horrible than using contraceptives!

See these pages: http://news.yahoo.com/s/ap/20101122/ap_on_re_us/pope_condoms_reaction
http://www.washingtonpost.com/wp-dyn/content/article/2010/1/20/AR2010112001849.html?wprss=rss_world