Sql Fulltext indexing is not working for docx files in sql server2008

[ravi]

i am using sqlfulltext index seraching,its working fine in .doc file
which i save into database in column data type image but when i
perform the same search in .docx file i am not geting the result.
i browse through the net get the some suggestion that i have download
the some filters.
i downloaded the filter from the below link
http://www.microsoft.com/downloads/en/details.aspx?FamilyId=60C92A37-719C-4077-B5C6-CAC34F4227CC&displaylang=en

FilterPackx86.exe and installed
after that done the following steps

1)In SQL Server Management Studio, select the instance in which you
want to enable IFilters, and then run the following command in that
instance:
sp_fulltext_service 'load_os_resources', 1
2)Restart the SQL Server service.

then also sqlfulltext index seraching not working in .docx file.

can any one give solution.

Regards,
ravi kumar