Adobe - Basic user manual for Flash Professional.
AdobeTV - Video tutorials for many frequent questions and how-to's.
Selected Lynda Tutorials:
Flash Catalyst CS5.5 Essential Training:Transform static artwork produced in Illustrator and Photoshop into interactive Flash-based microsites and applications, all without writing code. Author Mordy Golding covers building a functioning wireframe, importing and editing artwork, triggering state changes using interactions, and publishing a final project with Flash Catalyst.