Andrew,
Unfortunately child abuse isn't just a Catholic problem, although from media coverage one might think it was. If "child abuse in the Protestant church" is put into Google there is a lot of evidence to point to the regretable fact that child abuse cuts across denominations. Why I have come across JW's having problems
Here is one link I found.
http://dannimoss.wordpress.com/2008/06/20/protestant-clergy-abuse-equals-or-exceeds-catholic-clergy-abuse/Perhaps I have picked you up wrong but I don't think there is a connection between homosexual tendencies and the abuse of children. The desire to abuse children come from a disorded sexual desire, irrespective of ones sexual orientation. This is why I disagree with the argument that some put forward that child abuse in the Catholic Church is due to celibacy.
If a priest, or any person for that matter, has a disordered sexual desire, which expresses itself by wanting to have sex with children, marriage will not the cure it. Getting married will only involve the transfer of a man's unhealthy lust to his wife or children. Conversely, if a man abuses his wife, the solution to the problem is not the renunciation of his call to marriage. The solution lies precisely in his call to marriage, to love his bride as Christ loved the Church.