Hey, I don't know if this is only for me but the split which can be download on the ressources part is empty.

It's empty for you? Weird, it's not for me. Filled with all kindsa goodies. Anyway, here are the splits: http://www.speedrun.com/splits/Portalnooob_bx1fa.rar

If it's really not showing anything for you, here are links to useful things.

If you're playing anything but glitchless, it's best to use source unpack. It lets you do stuff like saveglitch etc.: https://wiki.sourceruns.org/wiki/Source_Unpack

If you submit a run, you'll need to record demos. Install tyhis as instructed in the readme: https://dl.dropboxusercontent.com/u/7002247/speedrun_addonv0.0.5.1.zip

And if you want to practice a certain chamber, here are saves for each chamber: http://www.speedrun.com/saves/Portal_Saves_TdRQm.rar

And if you really can't be bothered waiting for 53 seconds in the starting vault, here is the official save for skipping the vault: http://www.speedrun.com/saves/vault_2e631.7z (Note: if you skip the vault, it MUST be this save. Livesplit will automatically add 53.01 seconds to your time if you use it, as that's the length of time it skips.)

Thanks, Source Unpack and the demos plugin works but even with your link, the splits give me nothing, this is empty

The splits aren't supposed to contain any times if that's what you mean, they're just so you know what the maps are and don't need to set up your own splits when you start running the game.

There are no splits (no chambers) I can make one but I need to know for what chambers we need a split (for the autosplitter)

Chamber 00/01 Chamber 02/03 Chamber 04/05 Chamber 06/07 Chamber 08 Chamber 09 Chamber 10 Chamber 11/12 Chamber 13 Chamber 14 Chamber 15 Chamber 16 Chamber 17 Chamber 18 Chamber 19 Escape 00 Escape 01 Escape 02