Regardless of whether an OS supports flash or not doesn't mean you cannot install it. All you have to do is download a functional library for your device and place it in the appropriate locations. For flash libs I'd assume some place like /usr/local/lib/ or something, then just symlink it to your browser of choice's plugins folder.
Should work fine from there.
To symlink just run the command:
Obviously replace flashlib.so with the appropriate filename/extension.
ln -s /usr/local/lib/flashlib.so /usr/local/bin/firefox/plug-ins/flashlib.so