Problems editing sprites in UNIT.BIN (PSP version)

[Gallion-Beast]

I followed the steps in Lydyn's tutorial, but when i try to open it in Shishi sprite editor, a white bar flashes across the window and then absolutely nothing happens.
Does anyone have any suggestions as to what may be going wrong?
(shishi works fine on getting the battle sprites straight from the ISO and I've had no other issues from editing programs with this ISO thus far)



Edit: Oh and while I'm asking questions, how do I change which sprite is used by which character? For example if I was to replace Rafa's guest sprite (separate to his normal one) how would I assign that to a character?

[CidIII]

Lydyn's guides are incredibly outdated and these should be asked in the Help! section.

[Gallion-Beast]

Sorry, my bad, I'm generally pretty good with finding the right section for things, I just get bouts of ditsyness every now and then.