Hi Pam, you said...

Got an iphone. Trying to sync my Outlook calendar to it without success.
Suggestions?

I assume you downloaded the latest iTunes, and set the options to sync your
Outlook calendar, and it didn't work, right? Since you are on this forum, I
also assume Outlook is setup to access your Exchange account, right?

Just a thought, does your PC recognize Outlook as being the default email
program (i.e., does an Outlook message form popup when you click a mailto
link on a webpage)? If the PC doesn't recognize Outlook as the primary email
program, iTunes may not be looking to Outlook for data, esp. if you have
another PIM application. For example, if you used to have a Treo and used
Palm Desktop and Hotsync, iTunes may be looking at Palm Desktop for calendar
info, not your Outlook calendar.

In case you didn't know, iPhone will not (at this time, hey Apple!)
wirelessly sync your calendar, contacts, etc. The only thing it can do with
an Exchange server is give you email via IMAP. And that's only if your
company's administrator has enabled everything on the Exchange server, the
firewall, and possibly with the ISP.

iPhone's only method to sync contacts, calendar and other PIM data is via a
physical sync with your computer and iTunes (syncs like an iPod).

Cheers!
Chris Gardner