Can try some free tool to share Outlook calendar with other machine. Check this CodeTwo Outlook Sync.
See this blog post here
that demonstrates how to share calendars between similar and dissimilar
email clients (like outlook, sharepoint and Google). If you follow his
steps, you will be able to “publish” your Outlook 2007 calendar and
“consume” the 2007 calendar in Outlook 2003
Hope this helps.