I wasn't sure which was which... And first, I thought it was the mamduda
So this website is partially wrong:
Alphabet arabe, mode d'écriture et de translittération (It is ok in Arabic but not in English)
Thanks for the link to the lessons, but I think it a little too advanced for me now. I hardly understand a text written in Arabic.
Next time, I will double-check with my own grammars instead of first website I come up to.