I use Away3D, it's not outdated isn't it ?
yes, download the version You like (preferebly a stable, compiled swc), link it to Your project and compile to see if it works.
Keep in mind that with each new version there is the possibility of breaking-changes in the API, eg. the developers decide not to support some methods anymore or change some signatures here and there..
Usually these changes (if any) are well documented,and should not require a lot of after-update work, especially in simple scenarios as in examples.
Okay, yes i use Flartoolkit samples. So how do i upgrade Away3d ? Just download the.swc and put it on lib folder ?