This work for me.

  1. Download package to your computer
  2. In Joomla Administrator
  3. Go to install
  4. Upload Package File
  5. Browse to package on your computer
  6. Upload & Install

If that don't work try this upload extracted file to you server

  1. Create a folder inside "tmp" folder in tmp/your package name (using an FTP or file manager).
  2. Copy all the Extracted files to your server tmp/your package name
  3. In Joomla Administrator navigate to Extensions - Manager - Install
  4. Go to Install from Folder
  5. Type in the right path in form field tmp/your package name.
  6. Click install