transmission == toast ?
 

I have done the unthinkable. My transmission was overfilled by about 20 oz
of fluid. Good thing I used HG ATF! huh? I did the fluid change myself,
no one else to blame. I drove for 2000 miles then the transmission started
acting up. Now, it wont drive and the fluid smells like toast.

Can anyone give me some advice on what needs replaced in this component?
Is there any hope that the transmission can be revived?

Thanks.
Tom