I see the 'Mighty O' has been sunk as planned.
Congratulations to all involved. If that's not premature. Navy divers are scheduled to go down today and inspect her on the bottom. And we'll only know then that all is ok. (I don't think anybody is expecting her to have tipped upside down or broken up, or anything!)
As I've said before, I'm sure it'll attract divers and sports fishermen to the area not just from the USA but overseas as well.
If you want to be one of them, you might check out www.divemightyo.com.
Addendum (23/05/06). It seems she is upright at least. I've found some footage taken by the first navy divers to visit her on the bottom.