before buying this great template I asked Kriesi if I can have multiple images displayed one below another instead of using the slideshow. He did not answer but I loved the theme and I bought it thinking that there must be a simple solution to my problem.
After digging the forum I noticed I was not the only one asking for the same "feature" and this thing can not be done in a simple manner.
My workaround is to use some image editor and to combine in a single file/image the photos you want to have one below another. Import it in your library and then look on your server for the file "name_of_the_file-465x346.jpg" (which is the thumbnail) and because it looks strange, you have to replace it with your own cropped thumbnail.
You can understand better what I mean by clicking here
Anyway... you can not show a video on the same page, underneath...