Reinstall x3 theme

Hi,
My friend's server was defaced by a script kiddie and he removed all index.* pages from the server and made here own index.html page.
Now there's no backup at all! I removed all skiddie pages but users can't log into the cpanel because the original index.html in /usr/local/cpanel/base/frontend/x3/index.html is removed.
I forced reinstallation with # /scripts/upcp --force and still we can't access to cpanel (btw there's no pb with log into WHM).
Any idea how to reinstall completely cpanel or just reinstall the x3 theme??
Thanks in advance.

 

I know how they got into the server... they got a root so they replace every index.* file into / by there index file.
Now I removed all backdoors and shells, and I fixed all vulnerability in the server and in the php scripts.
I have the account owner (root) and I need to copy every old index.* file in /usr/local/cpanel/base/frontend/ to fix the x3 theme.
It will be great if someone compress index files in this directory and upload it somewhere so I can download it and replace the skiddie index files to fix the theme.
Peace.

 

They only defaced some index pages and installed a rootkit that's why I called them script kiddies..
I contacted the cpanel support and now it's work after forcing reinstall. It doesn't work for me beause in /etc/cpupdate.conf the CPANEL= line was set to never, that line must be manual-release..
After doing this, a forced update fix it.
Thanks Infopro for your time.
Peace