[SmartcardServices-Users] Problem with Smart Card Services Update 2.0b2-ML-signed

I had problems with Gemplus GemPC smart card reader and I tried to solve it by installing Smart Card Services Update 2.0b2-ML-signed.pkg on OS X 10.8.2. After installation my lock screen dialog box has changed from small one to the standard, large. In addition when ssh key is loaded it is sometimes impossible to type in password (characters are typed in the terminal windows). I would like to uninstall this package. Can somebody help me with this? I cannot find a way to uninstall Smart Card Services. -- Bosko