Upfront: Need detailed documentation

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.

It would be great if someone can help.