A big component that you need when you are building workflows for MOSS in Visual Studio. You can find it here:

http://www.microsoft.com/downloads/details.aspx?familyid=6D94E307-67D9-41AC-B2D6-0074D6286FA9&displaylang=en

WSS version: http://www.microsoft.com/downloads/details.aspx?familyid=05e0dd12-8394-402b-8936-a07fe8afaffd&displaylang=en

You can hear me in Swedish (and see my screen) building a Workflow and deploying it to MOSS 2007 here: http://download.microsoft.com/download/8/0/c/80c8095b-b84c-4bf3-a7f6-1fa8b7e22ff2/share_point%20server_2007_WF_KB_06-11-03.wmv (it is sort of a tv-chef recording so you do not really need to understand what I'm saying)
The LiveMeeting is for the old version of ECM, you have to tweek the bat file in a different way for this version.