I purchased and used Flash Professional 8 on a Mac until the Mountain Lion OS blocked it.

I need to make updates to my old websites in Flash Pro 8 and I finally found a computer that will run Flash Pro 8 (I still have my serial number).

I tried to download the English | Mac trial version on Adobe.com but when I clicked the button, nothing happened (I also tried it in Firefox and nothing happened).

Where do I download Flash Pro 8?

Thanks Advance!