I'm not aware of any English translation that is available. I purchased the Tanguay collection on CD Rom and have been relying on my college French classes (which I took many, many years ago) to muddle my way through. There are plenty of free sources on the web that will translate from French to English, but you must somehow get the French text. I realize that the site you referred to (
http://bibnum2.banq.qc.ca/bna/dicoGenealogie/) simply provides images of the pages, which cannot be translated.
I suppose you could download each PDF page from the site, use OCR software to create text versions of the image, and then use one of the many translators available to translate the French to English. I attempted this method on the first page of the pages you referenced. The quality of the image was such that my OCR program could only recognize about 70-80% of the words. I didn't have the patience to go through the text file and manually correct what the program got wrong.
Sorry I couldn't be of more help. Maybe someone else on the forum could chime in with an idea.
Roger