How to clear your flash cache
To clear specific sites:
When you click on the link, you are taken to the adobe site. On the right hand side of the frame, there is a box that will display a list of visited websites. All you need to do is click on the button that says Delete All Sites. This will then clear all your flash cache. Chad said that if there is ever a time that you produce a result within a flash piece that you then try to recreate but fail to do so, you can try to clear your flash cache to try to reproduce the original results.
To clear the entire cache (all sites):
(on windows XP machines) you can just kill the sub-directories off this path: C:\Documents and Settings\\Application Data\Macromedia\Flash Player