I applied online. The process took 2 months. I interviewed at Camp Rim Rock (London, England) in Apr 2014
Interview
Basically a skype interview, some people didn't even get that. Basic interview but with a lovely lady.
You also need to fill out a long winded application form which is unlikely to be read as some people that go have clearly lied about their past experience!!
Interview questions [1]
Question 1
Tell me about yourself?
Why do you work with horses?