FYI
http://www.ewtn.com/library/CURIA/ccehomosex.HTM
I would add to this discussion that the recent (2005) Vatican instruction “Concerning the Criteria for the Discernment of Vocations with Regard to Persons with Homosexual Tendencies in View of Their Admission to the Seminary and to Holy Orders.” addresses the issues in question head on. It is sad that this instruction was not around and or followed when any with such tendencies were initially considering vocation...
The problem was that a number of American bishops decided they knew better than the Vatican and didn't follow it.
The reissuance is more of a "Yes, we really meant it."