Postgraduate Diploma in Professional Accounting

I would like to apply the PolyU Postgraduate Diploma in Professional Accounting, I am not graduated from the business degree, I got the BSC in Computing. According to the website entrance requirement:

A Bachelor's degree other than in business awarded by a recognizedtertiary institution plus evidence of completion of pre-entry course(s)in May-July designated by the Graduate School of Business of PolyU.

Anyone know what kind of course I need to study and how much of the course?

http://www.gsb.polyu.edu.hk/index.asp?nodeID=175&lang=en-us

thank you for your reply.