Error Message Site Import

I open site import on CS4 (MacOSx) and the window on the top left appears. I try to enter anything here and it says the following:
"While executing onClick in WA_SiteTools_progress.htm the following Java Script Errors occurred: In file "WA_SiteTools_Progress": Imprt New is not defined"

I deleted the MacFileCache.dat because that seems to be the general advice but still not working. I recently updated extensions.

Thanks for the help

Your configuration folder may have become corrupted. You can rename the configuration folder to have Dreamweaver recreate it. Close Dreamweaver and go to:
WinXP
-DW8
--C:\\Documents and Settings\\<Your User Name>\\Application Data\\Macromedia\\Dreamweaver 8
-DWCS3
--C:\\Documents and Settings\\<Your User Name>\\Application Data\\Adobe\\Dreamweaver 9
-DWCS4
--C:\\Documents and Settings\\<Your User Name>\\Application Data\\Adobe\\Dreamweaver CS4\\en_US
Win Vista
-DW8
--C:\\Users\\<Your User Name>\\AppData\\Roaming\\Macromedia\\Dreamweaver 8
-DWCS3