Pearson is actually on the ball now.
PowerSchool 22.214.171.124 is now available for download from PowerSource.
PowerTeacher Gradebook and Java Compatibility
An upcoming Java update planned for January 2014 (Java 7 Update 51) is expected to prevent teachers from launching PowerTeacher Gradebook using the Quick Launch button or the Launch link in the PowerTeacher portal. This release includes updates to PowerTeacher Gradebook that help maintain compatibility with the upcoming Java changes. Pearson recommends that districts apply this update before January 2014 to ensure continued access for teachers to PowerTeacher Gradebook. Click here for additional details about our commitment to maintaining PowerTeacher Gradebook compatibility through future updates to the Java platform.