Fading Buttons?!?!

Hiya guys,

I found this script that if you have multiple buttons on your page, and place your mouse over one of them, the others will fade. Simple but nice.

Since getting the script (which only came with three buttons), I changed the name of the properties and most things in it, so I could understand it better, but the two buttons I have added (the last two) don’t work! It tells me:

Target not found: Target="/a" Base="_level0"
Target not found: Target="/b" Base="_level0"

Two of the movie clips were originally called a and b, but I since changed that and the first three buttons work fine.

Can someone please help me? You can download the Fla here:

www.mattblank.com/fading_buttons.fla

Many thanks in advance!
Matt