[ubuntu] software uninstallation

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http://ubuntuforums.org – I downloaded Foxit reader,a PDF file reader from its website and installed on 11.10 through the software center. While installation,the status bar filled completely but did not end with a green check mark indicating as 'Installed'. Now when I open the application through Applications--> Foxit reader,nothing happens.If i want to reinstall it again,same thing happens.The installation bar fills to the maximum,but does not show as 'Installed'.I am unable to remove the software through the terminal with ' sudo apt-get remove FoxitReader ', the message is, 'unable to locate the program'....How to (Hardware)