If you use Tweetdeck you probably already know they screwed the new version (1.0) and you want to revert back.
Unfortunately since they are now part of Twitter I had a hard time finding the older build and decided to share it.
Some user have experienced a
“This application cannot be installed because this installer has been mis-configured. Please contact the application author for assistance.”
They solved it by uninstalling all previous versions of tweetdeck. Make sure you don’t have another one already installed.
If you are reaching this page in search for a way to revert to the non-paied version of Tweetdeck, becauseTwitter introduced all those crazy new rules, sorry, I have no solution. This post was made back when Twitter purchased Tweetdeck company and messed it up, I guess they ended up nearly killing the best tool they had :/