Broken slideshow

i have the GamsMania theme, and i put a picture on a post and made the slideshow display the post instead of the default, but the tet was, instead of being over the image, was above the image, so i tried putting it back to the default setting of which to display, which is displaying some test posts, but then instead of being a slideshow, ended up with all the pictuteres and text going down the page. this is a link to the website now, im trying to use my own (correctly sized) images and posts for it to use on the slideshow, but its not woring:
https://www.megamidgegames.tk/