Question : Problem: How do I get activesync to work with an iphone?

We have a single exchange server. I have an iphone 3g with f/w 2.1. I have attempted to configure the exchange server for activesync as per these directions:
http://coreygilmore.com/blog/2008/08/05/configure-activesync-with-a-single-exchange-server-exchange-sync-for-an-iphone/
When i try to setup the iphone for exchange, i get connected and verified. when i try to check mail, it says that it was updated (currently) but mail is not sent or received. Can anyone give me some clues on what to do?

Answer : Problem: How do I get activesync to work with an iphone?

According to Apple's documentation, the iPhone requires SP2 for Exchange 2003.