Movie Clips with numerical instance names

Hi! I have a flash menu in which each button (8 in all) has a numerical instance name, e.g. “1”, “2,” “3…” If I want to add more buttons, I should also name them in this fashion. BUT Flash CS3 isn’t allowing me to do that.
Can anybody explain how this is possible? And if anybody of you could send me a movie clip with an instance name of “9” to “15” please, I will just edit it (this work-around solution came from another thread in this forum)

Thank you! :slight_smile: