I tried coreplayer2's getFlash11.sh script again, taking out the message suppression in the wget "$DOWNLOAD" step. The wget messages show that it connects to fpdownload.adobe.com, but then shows error messages:
ERROR: The certificate of 'fpdownload.adobe.com' is not trusted.
ERROR: The certificate of 'fpdownload.adobe.com' hasn't got a known issuer.
wget then issues the 'Error:Downloading source. Exiting' message, which terminates the script.
Note that there was an update to wget.tcz for wget version 1.17.1 on April 2. I wonder if this is a factor?
edit: according to the wget 1.17.1 release notes, you have to add --check-certificate=quiet to tell wget to not print any warning about invalid certificates. Putting this on the wget step in the script allowed it to complete normally.