I faced this problem sometime ago and some one send these troubleshooting tips to me. If the MeetingPlace for Outlook custom form is installed and you can Schedule MeetingPlace Meetings from Outlook but the Meeting Invitations are blank:
A. Open Outlook 98/2000 on the scheduling machine
B. On the Outlook toolbar, click the Tools tab and select Options
C. Click the Other tab and select Advanced Options
D. Click Add-In Manager and verify the MeetingPlace Calendar Scheduler extension is there and checked.
E. If it is not, click Install and enter the path to the Addins folder (usu.
c:\program files\Microsoft Office\Office\addins. Double-click MPExt.ecf then click OK, OK, OK.