Well, the process is exactly the same in all versions _except_ 2007
Select the graphic in an existing document,
Go to Insert> AutoText> New,
Type a name for the item,
Click OK
The problem is that graphic object AutoText doesn't provide the AutoComplete
Tip. To insert it, type its name then key Option+Command+V
Alternatively you can add it to AutoCorrect in much the same way:
Select the graphic,
Go to Tools> AutoCorrect,
Type the 'trigger' such as mn (as in "my name",
Click OK
The advantages are that the 'trigger' need not be 4 characters & to insert
it you need only type the trigger then press return.
Another option is to add the graphic to the Scrapbook so you can just drag
it into any Office file, not just Word documents.
HTH |:>)
Bob Jones
[MVP] Office:Mac