Double-click on the word symbol to edit it. choose the text tool and set the font to Times, 20 point, color white. Type JOEL in the center of the screen. Now select the text again and in the InfoPanel enter 0 for x and 0 for y and click Apply. Convert the text, JOEL, to a button symbol and give it the name joelB.
Repeat these steps to create button symbols within the other movie clip symbols, as listed here: 

Movie Clip		Text	
	
word02			TOM
word03			ANT
word04			LIZZIE