Hi Ray. It's been a very busy week. Thanks for your patience.
Please read these for a reference:
Mixing Different Versions of the Same Template Re: Upgrade from Sibelius 5 (I know I'm late)One of the things I tried with your score that's maybe different from the second link above, is instead of re-inputting all the unpitched percussion manually, I was able to copy from the original and paste into a fresh copy of the 7.0a template. I didn't test this with the entire score, but it seemed to work just fine for the battery staves. (I sent you the file I ended up with for this test.)
However, if the copy/paste method doesn't work (errant bits
can be brought in this way too), then you'll need to go ahead and re-input manually. I know that this is probably not the desired solution/suggestion, but trying to fix the current file would be even more work.
Let me know if you have any other questions.
Hugh