First Stage took 2 weeks to hear that I passed and I was notified by email, second stage I was called the next day after attending to say that I had passed and to give me the course dates etc. I took me a while for the whole process, I went for the 1st Stage on 3rd April then the 2nd stage on 23rd May, I believe other people didnt have to wait as long for the second stage!
Hope this helps