Iphone 3g exchange setup can send mail but shows nothing in any folder or inbox

We recently switched over from T-Mobile to AT&T and got Iphones for everyone.  The problem I am having is that once i setup exchange and turn off ssl, the account gets verified and I see my inbox and the entire folder list, but there are no emails under inbox or any of the folders.  I tried with everyones Iphone and still the same problem.  I had a unlocked/jailbroken Iphone with T-Mobile that worked with exchange through OWA but I cant figure out why it wont now.  OMA and OWA are setup and were working with windows mobile phones.  Also I am on an apple computer so cant use activesync.