The purpose of this study is to determine if a computerized version of cognitive behavioral therapy (CBT) can improve high-risk sexual behaviors in patients attending an outpatient methadone treatment clinic. This population is at high risk for contracting and spreading hepatitis and HIV. When added to their treatment as usual (TAU), the CBT session will increase the total exposure of clients to education about how to reduce risky sexual and needle use behaviors and provides real world examples. This study seeks to determine if the use of this CBT program is easily added into the clinical program and if patients are satisfied with its use.

The main hypothesis is that the use of computerized CBT in addition to treatment as usual will improve knowledge and reduce occurrences of unprotected sexual activity. The study will also look at patient and clinic costs related to the CBT intervention, drug use and retention/adherence.