Ok i have found the solution to the zip problem. . . After downloading zip files, if u found no files inside that zip then click options > save archive . . After that go to filemanager > zipman . . u will see that file, for example
(http;//wen.ru/bluecar.avi.zip)
Just rename it by deleting the .zip and then save it as
(http;//wen.ru/bluecar.avi) Enjoy.