confusion over salat

Hi, can someone please help me with a couple of things i am confused about concerning salat. Firstly is Al-Fatihah, do i recite this at the start of every rakat? I have a book from the Mosque but some of it is worded in broken english and its not very clear. It seems to say i should recite Al-Fatihah at the start and end of the salat, for example in 2 rakat recite it in each or in a 3 or 4 rakat recite it at the first and last rakat. Also im trying to do salat in Arabic but at the minute i am unable to remember Al-Fatihah and Tashahud, so i am doing it in a mixture of English and Arabic, is this okay or should i stick to English until im able to do it all in Arabic? Thank you :)