Sidebar Gallery

Hi, sorry if this question has already been covered, i couldnt get the search box to come up with any results at all. I have nextgen and wanted a sidebar gallery but the problem i am coming up with is that the images all display in one continuous vertical column and i cant find where to alter this on the style sheet? I am also having problems viewing the site on Iphones as it is adding huge amounts of white padding above images? http://waikakagenetics.com/wp/ If you have time to take a quick look at it i would be interested in whether you think catch responsive or catch mustang might be better suited to my needs here than Everest?? I really like the full width banner image on all of these sites but wonder what benefits the premium themes offer above those of everest? Thanks for your help, Steph