Maybe I missed something, but...
You guys want to install a theme on PS3, right?
But PS3 says there are no themes, right?
So... why do you try to extract the files?
If you want to install a theme on PS3, you just have to download the p3t file (which is the theme file format) on a usb key.
To do that, in the usb key (or anything else you use) you firstly have to create a folder named PS3 and in that folder you create another one named THEME.
Once you've done:
1) download any theme you want right in the THEME folder;
2) plug the usb key in the PS3;
3) go to "Theme Settings" and click on "Install"
I want to install a theme on my PS3 and I have followed all of the steps on the INSTALL tab at the top but when putting the USB stick into my PS3 it still says no themes found. Any help please? P.S. also after I have put the theme on to my USB it says there are njo suitable programs to open it with.