NARTH has a nice interview, The Psychology Behind Homosexual Tendencies, with Dr. Richard Fitzgibbons, author and contributor to the Catholic Medical Association’s document Homosexuality and Hope.  He outlines the official Catholic position, which I think is definitely in line with the ex-gay approach, in that it does NOT involve religious conversion, but does involve healing of emotional wounds that have led to homosexuality.  Here’s some quotes:

Those with deep-seated homosexual tendencies identify themselves as homosexual persons and are usually unwilling to examine their emotional conflicts that caused this tendency.

Most of these men had painful adolescent experiences of significant loneliness and sadness, felt insecure in their masculinity, and had a poor body image. Well-designed research studies have demonstrated a much higher prevalence of psychiatric illness in those who identify themselves as homosexual….

Unresolved paternal anger is regularly misdirected as rebellion against the magisterium and the Church’s teaching on sexual morality. Unfortunately, their denial, defensiveness and anger block their openness to seek the Lord’s help with their emotional and behavioral weaknesses….

In our clinical experience those with deep-seated homosexual tendencies lack an understanding of the origins of their conflicts and of the possibility of healing….

Seminarians with effeminacy, a clear sign of serious affective immaturity, usually failed in their childhood to identify sufficiently with their fathers and male peers. They can benefit from therapy to extinguish effeminate mannerisms and to strengthen their appreciation of their God-given masculinity so that they may become true spiritual fathers….

We have observed many priests grow in holiness and in happiness in their ministry as a result of the healing of their childhood and adolescent male insecurity, loneliness and anger and, subsequently, their same-sex attractions. This healing process has been described in the statement of the Catholic Medical Association, "Homosexuality and Hope."

Glad to see that the Catholics are taking a clinical, logical, and biblical approach.