** This is the message I get at the top of the calendar. **
That means the files it was trying to include there not found.
That template happens to be for an older CalendarScript version. The latest version doesn't use those files any longer.
I don't believe those files are needed for printing anyway so just edit the template and find the following lines and just remove the # sign from them:
<!--#include file="styles.pl"-->
<!--#include file="styles_scripts.html"-->
so they look like the following respectively:
<!-- include file="styles.pl"-->
<!-- include file="styles_scripts.html"-->
Dan O.
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