The first thing you should do is to start having your credentials recognized. Visit the alliance's website to find out the requirements needed. The process takes between 16 to 22 weeks. Once the Alliance decides that you do not need to take additional courses, then you can register to sit for the PCE written exam. After you pass, you can try and find a job while reviewing for the practical exam. After you've passed that, then you can fully register with the College of Physiotherapists in BC and be able to independently practice.
That's it in a nutshell I guess =)
Good Luck!