Thanks for your quick response. I modified each of the files listed in the following file:

changelog-v1-3-9h.html

I just have one concern though... I wasn't quite sure what to do with this line

/zc_install/ ... assume *all* of /zc_install/ has changed


I was pretty worried that the modifications performed on my site (i didn't do them), would disappear if i was to extract the contents within zc_install and over rite the includes folder (classes, functions, modules etc).