I read and followed the instructions. Perhaps You can give me a link from where I can get the file that uploaded OK for you. I downloaded the MOJO.ZIP file and it was 30231kb in size. I got the dialog box displayed after pressing the appearance link on the WebUI. I pressed the BROWSE button, directory opens up and I navigate to the MOJO.ZIP file. Select the file click OPEN on the dialogue box or double click on the MOJO.ZIP file. It now appears in the field.
Now when I try to click the submit button nothing happens and I wait and wait. No hourglass or any other feedback that the file is being uploaded. The address bar in Fire Fox says http://wdtvlive/Main.php#. I tried it from 3 different PCs. Note what it says in these instructions and perhaps there is a problem with the file itself.
If the contents of the theme present in the ZIP file validates correctly, it will be flashed into the WDTV Live SMP player, If all goes well, You will see the new theme appear in the local content your WDTV Live SMP player in the user themes section alongside with the default Mochi Theme.
I can only summize that the file does not validate correctly, there is no other explanation as in the Local storage there is only the default Mochi theme. I downloaded the MOJO.ZIP file a few times just in case it was corrupted but no upload sofar.
A link to a file that has been uloaded would be appreciated.