gfx converter for k800

this is my first post here.how can i convert all db2020 gfx patch in to k800 r8bf003.the patch is created by using imgtool.can i convert other patches in to k800.(i mean k810,w850,w880,k550 patches in to k800).i need a w760 phone image for calling my k800.when i press a number shows a small image of k800 with pressing number.i needed to change that picture in to w760 small image.and i needed to change calling image means when we call a person it shows various image of phone with calling icons.please upload that kind of pictures.sorry for my bad English the reason for that i was lived in India.please reply fast i was waiting for your reply?