New site default files

[Toucan]

I'm writing a custom index.html page for new sites. It's ultimate intention is to run a php script for a semi installation of the joomla package. I've modified the index.html page without problem but i need a couple of php pages also to be copied to new sites.

I read a thread in which applied to ispconfig2 here
http://www.howtoforge.com/forums/showthread.php?t=213
but I couldn't seem to find the files in ispconfig3.

How can I achieve the same in ispconfig3?