Wonderful,
My girl was born in 2003 and is 3, going on 4 in November. As such, the application is going in this year. If she is accepted, she'll be starting what CIS calls "Reception".
2.55 has given some excellent advice - thank you! I just want to add that in addition to evaluating your little one's social and emotional skills, the school also looks at what I understand to be physical skills, i.e. running, jumping, etc. When my friend told me that this was done, I was initially quite surprised, but on thinking about it more, it sounds like quite a sensible thing to do. By doing this, I guess they are looking for all-roundedness in a child.
I'll try and keep you posted about how everything goes.