It sounds like it was made using File, Save as web page, so no, you can't
sync with it. If it's a sharepoint calendar, you could download appointments
to Outlook 2003 but not upload your appointments. (A demo is available at
www.xsolive.com)

Signature
Diane Poremsky [MVP - Outlook]
Author, Teach Yourself Outlook 2003 in 24 Hours
Coauthor, OneNote 2003 for Windows (Visual QuickStart Guide)
Author, Google and Other Search Engines (Visual QuickStart Guide)
Outlook Tips: http://www.outlook-tips.net/
Outlook & Exchange Solutions Center: http://www.slipstick.com
Join OneNote Tips mailing list: http://www.onenote-tips.net/
> Our booking agent uses something she calls E Calendar to publish our
> group's
[quoted text clipped - 3 lines]
> to
> the E Calendar?