Among 4 PCs and a Laptop, on one PC I have Win XP SP3, running on a 1.25 ghz Athlon, with 1.2 gb RAM, and when I try to use Flash it tells me to upgrade to the 'latest' version, but when I do so it fails, as it seems to want a faster processor. There is no indication of which version WILL work. Not very helpful, and the Website is a dreadful muddle.
Having recently retired from the software industry, I am apalled that a company as BIG as Adobe should have such a BAD website it is confusing and unhelpful.