hey elf files are like .exe files in computer.............u can use elfpacks nd use elfs.......there will be no problem b\w other vkp patches...........
just have to make directories,nd place dyn_const.bin in right directory...........
here is the tutorial..........
Elfpack/Elves | Sony Ericsson Flashing

here is the w580i elf pack
4shared.com - online file sharing and storage - download Elfpack_w580_R8BA024.rar