I have added a way to select version with getFlash11.
Here are the options, they are documented in the --help fuction:
/usr/local/bin/getflash11.sh # Will download the latest current version
/usr/local/bin/getflash11.sh --current # Will also get the most current
/usr/local/bin/getflash11.sh 11.1.102.55 # Will fetch version 11.1.102.55
/usr/local/bin/getflash11.sh --available # Will list available versions. Of course, if a new version arrives before the script is updated, entering that new version manually should work. I hope adobe's directory structure is what is predicted upon updates, but if not, adjustments can be made.