I was referred by my physician in October, 2010. My first appointment was in May, 2011. While I was waiting between referral and first appointment, I took the modules, tracked my food and wore a pedometer. I also had regular meetings with a group at my doctors. When I got the initial call (March, 2011) to book my first appointment, I was told they were doing a kind of "pilot" fast track progrm. The people that were doing the tracking, etc. that I was doing, were getting in faster as our process had already been started.
So, If your friend wants to be referred, my advice would be to start all the modules. You need to have at least 4 (I think it's 4) to qualify. Anyone can register for the modules, you don't need to be in Weight Wise. Food tracking, pedometer and working with her physician as well. The time really has gone by quickly, I didn't have to wait very long at all it seems!