Flash button problem

I am new to flash and am using Flash 8 Professional.

I downloaded a template for a website and set about modifying the text in the various buttons to suit my needs.  In doing so, I inadvertently deleted a sub-symbol definition (if that's the proper term) from a movie clip, and I now need to recreate it.

One of my layers is called "Client Portal", and the text "Client Portal" slides in from the right.  The text in this layer is supposed to be a link but it is not.  The layer references a library item called "but_client_portal" which is actually a movie clip.  Before I began messing around with it, there were 4 items under "but_client_portal" in the Symbol Definitions area of the Actions-Frame.  These were, in order:

Layer 2: Frame 1
empty_but
Layer 2: Frame 5
empty_but

The Frame 1 and 5 actions were "stop" and the empty_but actions were:

on (rollOver) {
  gotoAndPlay(2);
}
on (rollOut, dragOut) {
  gotoAndPlay(6);
}
on (release) {
 getURL("http://www.pnahosting.net/billing");
}

Unfortunately, I deleted the first empty_but and now the link does not function.

There are other movie clips with similar functions that work properly, so I either need to recreate the first "empty_but" or duplicate one of the properly functioning layers.

I have attached the fla file in zip format.  You will need to change the extension from .doc to .fla, as .fla files are not allowed.

Any help is greatly appreciated.
pna.zip