For all of you , who are facing problem with the installation .
JUST BE PATIENT. When you press the dowload button , it takes some time about 2 or 3 minutes , for the application manager to open .
And most of you (and me also ) thought that the download doesnot work , so you press download again again , with regard to multidownload the file ,and finaly have problem with free space.
SO just press only one time the download button and just wait .
In order to check that the download has started, just open conky and check if the rootfs space is reducing. (close and open conky in order to see the difference , because the changes to rootfs , are not real time)