First, FSX and FS9 version in this regard are entirely different so, the fact you see the FS9 version, doesn't mean anything.
First, check you see the Addon Manager under the Addons menu in FSX. If you don't see this, it's normal you don't see the terminals. Reasons why you don't see it, are usually related to broken FSX installation, the Simconnect part, specifically.
There are many threads on the forum about this, you might want to check the solutions posted there. For example, here:
http://www.fsdreamteam.com/forum/index.php?topic=1659.0Please, read all the thread to the end, and try to follow some of the suggestions posted there.
If, instead, you DO see the Addon Manager under the Addons menu, than it might be something else.