Okay - I'm still stuck and haven't been able to get this to work yet. I've followed the Cyberlink instructions to the letter, still no luck - I continue to get one big box for the "highlight."
I went as far as to take my image, reduce it to one color, matched that color to the other PNG stock files, right down to the RGB values. I did this for both the image file, and what appears to be the highlight image file. For example, in the program files, theres an HL05.png and a GHL05.png. I put my files in the same program file folder (where all the included stock files are located), and put it as the next sequence. I'm now guessing that to get the two files to work properly, it has something to do with the .THL file that's also in the directory. I tried opening that file to read the code, and while it opens in Notepad, it's mostly garbled and unreadable. There was however enough to indicate a pointer that associates the two files.
I'm guessing I have to create a .THL file or figure out a way to tell Cyberlink to link the two together - I can't believe I'm the only person that's tried to do this and had no luck.
If you can help - please do...beating my head against the wall is getting to be a rather dulling exercise.