Help me edit a Doc Menu style navigation

1 - Attached is the original fla file and a png of the look i’m going for
2 - What I’m trying to do:
[INDENT]I want each circle to be a different letter - a e i o u - as you can see my attachment. I want each vowel to be a button to, which will take the user to a new page[/INDENT]
3 - Background info
[INDENT]I’m creating the graphics, the “fish vowels” in illustrator.[/INDENT]

Thank you for your help.