Invisibl button problem

Hi

Pleeease can someone help me as this is beginning to hurt my head.

I have an invisible that calls up an animated menu, the menu then has further buttons to click on, but i can’t get the buttons to work because they are behind the aforementioned invisible button.

I have attatched the file so you can see my problem as it is hard to explain in writing.

Hope someone can help, or if anyone knows any tutorials that will give me the desired effect, i would be ever so grateful.

Thanx