Thank you for your post, and I apologize for the late reply.
It sounds like you did not set up the web server properly before installing FileMaker Server. Since you are running Mac OS X Server, disable the Performance Cache option for the Apache web server. The performance cache may interfere with FileMaker Server and data may not refresh correctly. In the Mac OS X Server Admin, click "Web" in the list for the desired server. Click "Settings" in the toolbar. In the "Sites" pane, double-click the site in the list. In the "Options" pane, clear the "Performance Cache" option.
Once this is done, then uninstall and reinstall FileMaker Server and try again.