hello guyz if you wanna install themes on your samsung U700 and L760 you need first to flash your phone on vodafone firmeware wich i think is U700EMG11 for the U700 using a data cable and FastMultiLoader v5.21 and if you want to know details go here
http://u700.portekoi.com/index.php?page=flash
but if you already have U700v so just download any of themes below