1) You need to root your Samsung Galaxy 551
2) Download and unrar sdcard.rar on your SD card (on root, DON`T put in any folder)
3a) Download Terminal Emulator from the market
3b) Use adb with shell command (your phone has to be in developer mode)
4) In Terminal/adb write:
su
mount -o remount,rw,codepage=utf8,vfat,xattr,check=no /dev/stl5 /system
cat /sdcard/LiveWallpapersPicker.apk > /system/app/LiveWallpapersPicker.apk
cat /sdcard/libRS.so > /system/lib/libRS.so
cat /sdcard/librs_jni.so > /system/lib/librs_jni.so
reboot
* after you write “su” phone will ask for root permision, ALLOW it
** after every line press Enter
5) After phone reboots you can use Live Wallpapers
Good Luck
WaveBoy2u 