true CCleaner doesn't always clean the macromedia folder properly...(when flash player is checked) so if you got a problem with that, just add the folder to the custom section ("include") in CCleaner, and fyi Charyb, Adobe doesn't store its history/cookies in temporary internet files, but as said in the macromedia folder located in your Windows user profile.
C:\Users\yourusername\AppData\Roaming\Macromedia