There have been numerous complaints from new users of Word 2007 that the tool that allows documents to be scanned as images, directly into Word, appears to be missing in this version. In fact it is not missing, but very well hidden, However, fellow MVP Herb Tyson spotted that the ancient WordBasic command to call the old dialog has been retained in the application, and so with a little juggling and the aid of a macro, it is possible to add the command to the QAT (Quick Access Toolbar)

The macro code is simplicity itself

Sub InsertFromScanner()
On Error Resume Next
WordBasic.InsertImagerScan
End Sub
 

but if you don't know to employ such codes or add them to the QAT (Quick Access Toolbar), see - http://www.gmayor.com/installing_macro.htm

Clicking the button (or running the macro) produces the following familiar dialog: