After playing around 2 days, with all the errors that you can see all over the internet, finally I got this latest QS work on Snow leopard and it is very fast.
Delete all old quicksilver.app, ~/Library/quicksilver, ~/Library/cache/ quicksilver, ~/Library/Application Support/Quicksilver, etc. Basically clean all up. Assign quicksilver on every spaces. Go to: Applications/Quicksilver (Show package content) > Contents > QSDefaults.plist Edit Use effect to "No", Save it. and relaunch the Quicksilver. Good luck. It might not all of the above should be done to make it work, but those were steps that I did. Please share... Thanks
