There are also a whole bunch of books out there covering Flash Catalyst, but I have not personally read them so you'll have to rely on the reviews of others.
Most of the other documentation you'll see will be based on creating example projects.
Here are some specific links to help you get started:
Getting Started with Flash Catalyst
Covers design of a basic interactive website and includes project files, geared for the design audience
Within this article, check out the sections on Creating transitions with the Smooth Transition button, and also Customizing a transition:
Learn Adobe Flash Catalyst
Getting Started video tutorials geared for the design audience
This specific video in this series covers transitions: http://tv.adobe.com/watch/learn-flash-catalyst-cs5/gs05-adding-transitions-between-pages-a nd-states/
Flash Catalyst 1:1 with Doug Winnie
Video tutorials covering wireframing, designing, publishing and working with developers
This specific video in this series covers transitions: http://tv.adobe.com/watch/flash-catalyst-1-1-with-doug-winnie/build-multipage-wireframes-e pisode-3/
In Flash Catalyst Help, when you launch it from the Flash Catalyst Help menu, you will find on each page a listing of Related Links, where we include links to examples and tutorials like the ones I mentioned above; so in addition to the explanation in help, the related tutorials are included in context. Also, if you search from Adobe Help, you'll be searching across all the information on Flash Catalyst from Adobe, plus community content sites, plus these forums.
Here are some pages that aggregate free material for getting started with Flash Catalyst:
Getting Started resources for designers
Getting Started resources for developers
Additionally, if you're interested in more in-depth basic training, Flash Catalyst CS5 Classroom in a Book is available for purchase here: