For those requesting information on the incidence of child molestation
among homosexuals vs. heterosexuals, etc. : Gregory Herek reviews some of 
the literature on this issue in "Stigma, Prejudice, and violence against
Lesbians and Gay Men"  (pp. 60-80 in John Gonsiorek and James Weinrich (eds)
"Homosexuality: Researcyh Implications for Public Policy" Sage Publications,
1992). Herek says: "Since 1978, no credible new data have been published that
contradict the conclusions" of research completed by the following studies:

  D.E. Newton, "Homosexual Behavior and Child Molestation: A Review of the
                 Evidence," Adolescence 13, 1978, pp. 29-43.
  A.N. Groth & H. Birnbaum, "Adult Sexual Orientation & Attraction to
                 Underage Persons," Archives of Sexual Behavior 7:3, 1978,
                 pp. 175-181.

According to Herek, Newton's review concluded that "gay men are no more likely
than heterosexual men to molest children." In Groth & Birnbaum's study of 175 
adult males convicted in Massachusetts of sexual assault against a child, "none
had an exclusively homosexual adult sexual orientation." 40% in their study were
classified as heterosexual, 13% as bisexual, 47% as "fixated" (had not developed
an adult sexual orientation), and none were "primarily sexually attracted to other
adult males." (Groth & Birnbaum's words).

The least credible document is Paul Cameron's (the homophobe whose membership in
the American Psychological Association was revoked and who was denounced by the
American Sociological Association for misusing social science data and methods)
"Child Molestation and Homosexuality" (Psychological Reports, 58, 1986, 
pp. 327-337) -- based on data from a door-to-door survey in 7 cities in which
Cameron assumes that all male-to-male sexual assaults are homosexual, without
any data supporting the sexual orientation of the perpetrators, and with very
problematic sampling methods. See Herek's article for more details of this one.
Cameron, alas, is often used to testify and appear on talk shows arguing that
gays are child molestors, despite having his credentials and expertise devalued
by the major academic professional associations.

Hope this is helpful for those looking for this information. 
Peter Nardi, Sociology Dept, Pitzer College, the Claremont Colleges (CA)