I'm not sure about CS4, but I know that CS5 had a bug that caused AME to be installed to the default location regardless of where you installed the suite.
Ah yes, Ic. I just restart my laptop and look into the defalut folder and there is it.
Thank you Mark.
Be advised that this installer bug caused another bug (in CS5--again, I'm not that familiar with CS4) where the updater kept reporting that a patch was available after it had already been installed. Here's the relevant thread, with a couple of workarounds: http://forums.adobe.com/message/3140115#3140115