flload not working

Hi everyone,
i'm new to comsol and I have a problem with COMSOL-with-MATLAB. I have the 4.2a release and matlab 2011b.
I need to use a .mph file in matlab and my colleague suggested me to use the command:
flload name_of_file.mph in my matlab script.

This return an error:

Undefined function 'flload' for input
arguments of type 'char'.

I'd like to know how am I supposed to load a model from comsol to be used in matlab.
Thanks a lot for your time,
Giorgio.