i used to play that game as well.
it has been ages now but i remember it used to be on a sight that also had Wordox on it and a mess of other games as well.
try looking up Wordox and you may come across it again.
i think the site you are thinking of changed names for some reason.
I used to play acrophobia all night long. When I went to look for it again it was not where it was supposed to be. I found it on flipside.com, but it is not running right now. It will be up and running again soon according to the website. I am waiting, not too patiently though. I really miss the game.
Just an addendum to my last post. I copied this off of the flipside website...
3. Will all my favorite games remain, are any games going away?
The vast majority of Flipside games will still be available, along with a slew of new games. However, Get The Picture, Apples to Apples, IM Games, and e-mail games are being discontinued. In addition You Don't Know Jack, Acrophobia, and Wordox Java will be down temporarily. As mentioned, there will be many, many new games to keep you occupied in the meantime.