Do you wnat to get into general business management or Graduate Diploma in Business Admin? The former requires either a degree, graduate certificate or min 2 years exp. [more info here:
http://datasearch.uts.edu.au/business/gsb/courses/details.cfm?spk_cd=C07018
For the latter, it requires 4 yrs experience and a degree
http://datasearch.uts.edu.au/business/gsb/courses/details.cfm?spk_cd=C06009
So its the Grad Dip in Mgmt that may be the one for you if you want to enter straight away, provided you have a cognate [i.e. a degree in business], else it requresyou to haveany other degree combined with 2 years experience.
With gpa requirments, as it is not listed, I cannot be certain and thus suggest you email
gsb@uts.edu.au for further info. However, for the MBA limited work experience, it asks for a minimum 2.75 out of 4.0, or approx. credit average so that may be an indication.
hope it helps