GAHH!!!!
First off, it's a hidden folder, so you will need to set your folder options to show hidden files & folders.
If you can't figure out how to do that, why are you here?
Second, if you want a fast way to get straight to the Application Data folder on ANY WINDOWS SYSTEM (XP+) Do the following
Either click Start > RUN or hold the WIN KEY and press R while the key is held down (WINKEY+)
This will open the RUN box.
Enter the next line EXACTLY AS YOU SEE IT
%appdata%
There. That will take you to your app data folder, regardless if you can or cannot view hidden files / folders.
All of you that can't get this far FAIL.
For those of us that like to just Copy/Paste, select all of the code in the following box and paste it into your run box.
%appdata%/Macromedia/Flash Player/#SharedObjects