Hi Peaboy,
Sorry for not replying earlier, but you can populate the name very easily. Here is an example:
https://www.livemeeting.com/cc/ukdemo5/join?cn=SIMON&id=S48XFX&role=present&pw=MR%2BBZ4jzB
In the above example, you will see that I have added in another XML variable CN= the field that populates to include the user name is represented by this variable. You can easily try this by creating a meeting, cut and pasting the url for the presenter, and inserting after the join?cn=name& there is no specific order of these variables, as long as the convention is that its after the join command, and each variable is sperated by the &
Anymore question, feel free to drop them in the Ask Microsoft Section....that's where I normally hide !!!