Hi Glenn,
I was able to download the complete ACPHelp zipped file and unzip it. Here's the link I used:
http://acp4.dc3.com/download/ACPHelp.zip
It's 3+ MB. If there are other links to more recent files, I didn't look for them. However, the files in this package are quite dated, with the ACP help file itself being two years old.
So, I zipped the latest ACP help file (ACP version 5.1) from the current ACP Doc folder and attached it here. Is this what you were looking for?