Thank you for replying,
No, no error message. Actually, I was able to install it though I don't see this module in module manager. I found it in type select where I can modify data but I don't find where adding things inside each tab.
Anyway, here is an example of the thing I see when I publish this module : http://lecartable.com/externe/s5_tabshow.png
As you see, there is something wrong. Part of the module get out of the right section.
And, here is an example of the module manager: http://lecartable.com/externe/s5_tabshow_module.png
You can see I put 170px of width, which is very narrow (on the example you don't see px after 170. I corrected this error and thing didn't change very much).