Hi there,
First of all, I’m not an AS master or have pretty much limited knowledge when it comes to that and flash as a whole.
My question is to you:
Which ways do people add internal links - for instance, I’m checking out the fla and they used Fuse which I have no knowledge of.
- there’s no actionscript on the buttons for the links
- there’s no actionscript referring to the buttons in the actions layer (last keyframe on the main timeline)
Other than that, where on earth would the links be to update them LOL.
Sorry if this is confusing. I can’t send or show you the .fla file… just trying to figure out how the guy did the work before (which I can’t ask him) and how to fix this issue 
