It is not that easy to understand exactly what you mean in your messages. Can you please use some comma there and then?

I download the first part that came out -> You mean you have downloaded the binary version of the client from the main page?
then on the main page I downloaded the next one -> You mean you have downloaded again the binary version of the client when there has been the big update?
I delete the first one -> you mean that you have deleted the first installation you did?
now I am stuck with number 10 -> you mean you have the version 3.0.0.10 of the client?
it says if I want to save a dionostic -> you mean when you try to run the client you get a pop up window that asks you if you want ot save a diagnostic file?
Well, if you have deleted the previous versions of the client and installed the new one, you should be able to run the updater (you can find it in start->program files -> planeshift crystal blue -> update).
Once you have the updater running you should click on \"update\". This process will let you download the latest updates for the client you are using.
If it doesn\'t work, can you try to be a bit more verbose and descriptive and say exactly, in order, which are the actions that you try to do and which the response you get from your system?