I think in-process means that they have your application and are looking at it to see whether you are entitled to the upgrade. It may take some time for this to change. When it is checked it will change to autthorised and then when it is sent it will change to shipped.
There is nothing you can do about it I am afraid you will just have to wait. On the plus side when you upgrade disk does arrive the drivers you need should, hopefully all be available.