When I use the galleria plugin using the galleria demo 1 custom hover effects  (Link), I get a few problems:

As you can see, The thumbnails are cascaded in 2 columns. i want it to be in one, continuous line. Also, can you plz. Tell me the way where I can have one picture already the 'active' picture, i.e when you go to the webpage it's already up? Thanks for any help.