I just can't seem to set up this theme right.

Hello i recently bought the theme Blackfyre but this theme seems really hard to install.
I have tried a lot from one click install to checking if there are actually errors, I have completely installed every plugin, I have done that. Now it still shows up broken images aren’t showing and the slider is not working “Yes i did – Bog – as category and yes my posts are also under the category blog” sadly i still haven’t been able to fix all of this. The promo page shows a slider? which is awkward cause it looks pretty messy. Register page i can’t seem to find it at all, Clan pages are buggy as hell i just really want some help i love this theme.