Wazeen,
I got your PM. Unfortunately, we don't do any sort of server changes for our users. I know Joomla inside and out, but hosting options and cPanel are something we aren't familiar with and it's simply too easy to break something on someone else's server without knowing all their details.
The mod_security issue is a low-level Apache feature. You, or your hosting provider, will need to investigate further on how to disable it or configure it to not reject our settings. If you get log information as to why it's rejecting our save, we'll gladly help more, but without that information, there's not anything we can do on the Joomla side or our extension. It's all lower level than that.
Hope that explains, and definitely keep us posted with anything you figure out.
Thanks,
Alex