I want to see class, function and variable/property, dependencies visually, like NDepend, but for ActionScript 2 or AS3 code.
Any programs or ideas?
Use doxy
The Flex SDK compilers have a -link-report argument that will give you some good information about the classes compiled into the SWF and their dependencies.
-link-report
See Examining Linker Dependencies from the Flex 3 documentation for more information.