I Can't get the download files

All the compressed files are not working, when you download it does nt seem to work. You dont get the files unless you browse each file 1 by 1 on the site.

Putting the files together is also giving some error:

Fatal error: Call to a member function output() on a non-object in D:\webroot\htdocs\1647_new\cms\components\datagrid\examples\classes\DG_DataGrid.php on line 553

Dont know what exactly is wrong, but if you have the link to the updated or stable files please let me have it.

I need it for a project.

Thanks alot