We here at SimV tend not to use netspeak, since it's already hard to understand how to get some of this stuff done, especially the design stuff. I'd recommend that you adopt this policy if you want people to really help you. Typing in complete sentences and trying to spell correctly will really help us understand what it is we can help you with.
But here's the scoop on your question:
There is NO freeware program out there to help build the 2D panel.
FS Panel Studio's free trial does not allow you to save your progress. It's purely there to show you the features.
If you want to do this freely, you must do it using Notepad and some form of graphics editor, which you will need to create the textures for the aircraft anyway. I recommend either PaintShop Pro or PhotoShop, both of which cost a fair bit of change. There are several free graphics editors out there, however.
Pixia comes to mind. These will aid you in the creation, but the real work will have to be done in a text editor.