How can i??

hi 2 all..
how can i edit the shoes?? what application is that?? n what are the requirements for using that application??
and plus the face n the hair..how can i edit them??
is there any possibility that i can put edited accessories in a created player?
what application would i be needing?

thanx for those who would answer ^^

1) You can edit the shoes using the iff editor which can be found in the release section
2) a descent computer
3) NO
4) Photoshop