Problem with centered popup (cd-rom)

I made a flash/html site to be viewed in cd-rom (offline mode).
I saw the tutorial in kirupa site ( and i was trying to use this source in my cd-rom. But it doesn’t work properly.
I have figured out that it only works online (like the tutorial link above).
Running the cd-rom in some computers (with the Windows XP SP2), internet explorer blocks the popup. When using Windows XP SP1 it works.

Somebody can help me?