This IWP module is optimized for the Instant Web Publishing engine in FileMaker 7. While this module will work fine in FileMaker 8, some of the layout elements will be moved a few pixels down and to the right if it is published in FM8. Just adjust these elements in layout mode and you'll be fine.
Note that we do offer a version of our calendar, and an IWP module, specifically for FileMaker 8 and 9. Find more information about that at "www.seedcode.com/ccalendar
The document "FM 7 Instant Web Publishing.pdf" is installed inside the Electronic Documentation folder within the <Language> Extras folder that is installed with FileMaker Pro 7.
For an overview of web publishing the calendar, check out http://www.seedcode.com/cp-app/webpublishing/1