Upfront: Need detailed documentation

Hi,
I am trying Fixer and Spirit on my sites and i am having following problems.
1- Cannot add the Layer slider in the top custom Slider place.
2-Not able to insert Twitter widget.
3- Fixer Subscribe button: I don't get any email when someone enter info in the subscribe section. Do i need to modify it? How?

My previous inquiry link.
https://premium.wpmudev.org/forums/topic/i-am-using-fixer-theme-on-the-following-site#post-855352

It would be great if someone can help.