By the official numbers that RMIT has there are 143 people listed to do Networked Media, and 133 have actually enrolled in a class. For the remaining 10, then there is plenty of room in the Friday 1:30 and 3:30 classes, and the Thursday 3:30 classes. Please do not magically appear at some other class hoping to elbow your way in. Those actually enrolled in the class are in those classes. At a minimum you need to ask the teacher of that class.