hi Scott,
basically Outlook 2003 is not supported by a current Exchange 2013 Update (see also https://technet.microsoft.com/library/ff728623(v=exchg.150).aspx ). While you still may try to create a Public Folder and do some customization, I strongly dissuggest to try to connect via Outlook Anywhere as you will get additional side effects.
If you really need to connect using Outlook 2003, I suggest you enable the IMAP4 services. Then you can connect using IMAP/SMTP.
Regards,
Martin
What are you trying to get outlook to connect to? also, you asked this question in the Exchange Forums, you might be better off asking it in the office forums.
http://answers.microsoft.com/en-us/office/forum?tab=Threads