The official site is cruisecelebritysolstice.com.
The ship is not built yet. Her inaugural cruise is 23Nov08. That is where are no reviews yet. She looks beautiful and I for one cannot wait to cruise on her.
There is an american link at http://www.cruiseweb.com/CELEBRITY-SOLSTICE.HTM
it has quite a few views of various diningrooms plus some other facilities but where they sourced the photographs I don't know.