The Transformers program uses cognitive behavioural and family therapy strategies to assist children under the age of 11 to stop engaging in problem sexual behaviour. The program aims to improve family and peer relationships by working on empathy, respect and communication. This paper presents preliminary findings from 17 children who participated in the Transformers program. There were two groups: Group A participated in assessment only and Group B participated in both assessment and treatment. Data was collected pre and post intervention and then two years later. Questionnaires consisted of a range of measures of child/parent functioning developed for the purpose of evaluating this program. Wilcoxon signedrank tests compared the outcomes of the assessment group (Group A) with those achieved by the intervention group (Group B). Those in the treatment group reported three times the frequency of the problem sexual behaviour compared to the assessment group prior to any intervention. Yet, following intervention, the frequency of this behaviour in Group B was lower with less than an average of one incident per month whilst the assessment only group was still engaging in at least one problem sexual behaviour incident a month. Only the children in Group B reported significant improvements in self-intervention and awareness of personal risk factors. Only Group B caregivers reported a significant increase in confidence to manage the child-parent/caregiver relationship. These findings are discussed in relation to the current literature on children who engage in problem sexual behaviour.