flashplugin

[PJ]

Is there any definitive install guide for flashplugin.
I was able to install it on a 7.2 64bit machine and then on an i386 but
somehow it has morphed into god-knows-what and no longer works.
I thought I had installed it with linux-f8 emulations but I found the
linux-f4 on the machine... so I don't know what is going on.
Now, trying to reinstall under linux-f8 and flashplugin9 does not work...
Adobe seems to be toally unreliable as to what they are doing with their
software; at least from what I can see about the problems users are
having with their products.
So, the question - what is the latest method to get the flashplugin to
work - what linux emulation, whick version of flashplugin... stumble,
bumble and mumble ...