Installing BBC iplayer on Ubuntu 9.10 64bit

Follow this link and follow the instructions exactly, also please note the warning below :) Enjoy :)

Use "Computer Janitor" With Caution
Don't Remove/Fix the following files

adobeair1.0 (.deb package)
bbciplayerdesktop.39453645783645bla (.deb package)
getlibs (.deb package)

Or you could corrupt the installation and when you attempt to fix, you will get messages from Adobe Air Installation like:

"An error occurred while installing Adobe AIR. Installation may not be allowed by your administrator. Please contact your administrator."

Resolution
If you have done by mistake...Like me and others :P You have to delete the cert files.

sudo dpkg --purge adobe-certs

Also you shouldn't have to worry about switching off the web browser either when you reinstall Adobe-air either.

Further Reading
Ubuntu Forums