hello , everybody

probably you already had this question, how can i setup my exchange server with my pocket pc ver 4.0 ( h6325) tmobile,?
i already activated the "T-Mobile Total Internet with Corporate My E-mail"
can somebody tell me what the steps for this? thanxs
and another question
i read about windows mobile 5.0 , it's any difference with the microsoft pocket pc ver 4.20.0 ?
i'm really new in this , so please give me a hand,
thanks again