Here are the seven speeches currently available -
(A link to a better quality Google Video version is below each one)

Amanda:

http://video.google.com/videoplay?docid=422447082451675124

Catherine:

http://video.google.com/videoplay?docid=2794539428499216503

Christian:

http://video.google.com/videoplay?docid=-6559495852281571540

Jessica:


httpv://video.google.com/videoplay?docid=-2097935764010364650&hl=en

Kerri:

http://video.google.com/videoplay?docid=8096665468233646714

Tyler:

http://video.google.com/videoplay?docid=322097323819760388

Velan:

http://video.google.com/videoplay?docid=8630877164675922230

Also, you can find a transcript of eight rally speeches (with only a few duplicates) on the Salt Lake Tribune’s polygamy blog, at: http://blogs.sltrib.com/plurallife/archives/2006_08_01_archive.htm