(From the Smiley website)
How do I get Smiley Central off my machine?
While it is unclear why you experienced difficulty uninstalling Smiley Central and the toolbar (you may have deleted the toolbar uninstall files, so that the normal uninstall program is no longer available on your computer), we have created an uninstall application to help you remove the toolbar from your system. To do so:
1) Please click here to download the uninstall application.
http://help.myway.com/uninstall/mwsUnins.exe
2) You should be prompted to either open or save the file.
If you choose to open the file: An uninstall procedure will follow. Please select the appropriate options from the presented screen to remove this.
If you choose to save the file to your local drive: Double-click on the saved file after the download is complete. You will then be presented with the uninstall procedure. Please select the appropriate options from the presented screen to remove this.
Please note that you will continue to see the toolbar until you close and reopen all instances of your Web browser or Explorer.