I had exactly the same problem, have a look in the  "include_CuteEditor.asp" file
it's a problem due to the localization (dots and comma)
change your source code like this
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            dim userVersion
                userVersion = CInt(Mid(userAgent, InStr(userAgent, "MSIE") + 5, 1))
                If Mid(userAgent, InStr(userAgent, "MSIE") + 6, 1) = "." Then
                    txtstop=Mid(userAgent, InStr(userAgent, "MSIE") + 5, 3)
-->>              txtstop=replace(txtstop,".",",")
                    userVersion = CInt(txtstop)
                Else
                    userVersion = CInt(Mid(userAgent, InStr(userAgent, "MSIE") + 5, 1))
                End If