Thanks for the (really) fast reply, nice from you.
Yeah they enable my account with HTML5 upload.
I had a few exchanges with Tom, I even sent him my zip file (I've done exactly what you said), but he found a problem with a specific file extension they didn't support. He told me they were working on it (like, 2 days ago).
Maybe he solved the problem and forgot to inform me.
I'll try to reupload my game, thank's again !