Hi,
This functionality was not available during the first few
days of Trail download. I found in a Captivate Forum that this
functionality will be available for download only after few days.
You can now download and install the Text to Speech in your
system. Which includes two voices as of now.
Earlier
http://www.adobe.com/downloads/
Select Captivate 4 from Drop down.. which takes you to
Captivate 4 download page.
http://www.adobe.com/cfusion/tdrc/index.cfm?loc=en%5Fus&product=captivate
Click on the link below..
Hope this will helps you to find the solution
Ranjith Kumar. Bandi