I'm sure I've read a thread where the answer to this question is. I'm just looking for it and as soon as I can find it I will post here.

On the other hand, I'm also using Powatool application. It can manage what to show and what to hide in the status applet menu and in the satus applet area. However, you can not set the order they appear. It could be a very interesting feature for this tool to set up such order of applications.