skill packet

When using a skill(cure).how is the target sent in the packet?

BB 7F 17 00=accid 5A 79 17 00=target
20 00 FE 03 FE 94 7D 07 BB 7F 17 00 77 05 F3 93 E7 C3 7A 02 15 00 00 00 03 13 21 C9 00 00 00 00
20 00 FE 03 F5 60 7E 07 BB 7F 17 00 77 05 F3 93 E7 C3 7A 02 15 00 00 00 03 13 21 C2 00 00 00 00

i dont see the target id in the packet?somthing to do with asc2hex?
::EDIT::i hope this aint the answer but, does it have to be xor,added and a bunch of other stuff?

The target ID is encrypted in there, can't remember where though :/

so does it have to be (SHORT ANSWER)xored then added ,then same thing with the caster's id xored added then add the two together ect...