Yes it is on their website.
http://www.oxfordaviation.net/courses/pilota-mod-gs.htm
Just so people don't have to go and click on the link then the subjects are:
Phase One Subjects
Aircraft General Knowledge
Mass & Balance
Performance
Principles of Flight
Human Performance & Limitations
VFR & IFR Communications
Phase Two Subjects
Flight Planning & Monitoring
Operational Procedures
General Navigation
Radio Navigation
Meteorology
Air Law
Hope this helps.
Best wishes,
Charlie Zulu.