There still seems to be some problems locating the official download site for Office LiveMeeting Client. Doing some simple searches at google/live explains this. Its simply hidden to well on MS.com 
So heres the URL :
Microsoft Office LiveMeeting 2007 Client:
http://office.microsoft.com/en-us/help/HA101733831033.aspx
And dont forget
Conferencing Add-in for Microsoft Office Outlook
http://office.microsoft.com/en-us/help/HA102368901033.aspx?pid=CL100605171033
Get morer Live Meeting resouces here:
http://it-proknowledge.blogspot.com/2009/08/live-meeting-2007-resource-page.html
Thank you!