Chrome has Flash built-in. There is nothing you can/ must do.
Check the instructions at this Google Groups post for a workaround to this frustrating problem. (If the embedded link does not work correctly, do a Google search for How to "fix" Adobe Flash issue tutorial.)
For future reference please see the post below. Thankfully Vector Layne really took the time to help, otherwise I'd be stuck using Firefox.
You are incredible! For the last week or so I had resigned to using Firefox. Now I can be back to using Chrome!