If by "everywhere" you mean behind the refrigerator and between
the couch cushions, then you're looking in the wrong places. The
default custom dictionary name is Custom.dic, but you could have
named it anything you wanted when you created it... do you know
what you named it? The default location for Custom.dic is
"C:\Documents and Settings\<username>\Application
Data\Microsoft\Proof", but it may be in a different location
depending on what installation options you chose when you
installed Office.