So..........You have a Gallery ,..... now you need to create and Album in this gallery.
Try and make sure you name the gallery in a unique way & then do the same with the albums.
Once you have created an album,you will see the 5 browse windows,these are for you to pick the files from your computer for uploading to the album.
Make sure your photos are no,larger than 50 KB or 600 x 450 px in size