Not 100% what you mean...are you saying that your Ange is invisible, or that the wrong anim is playing for Ange as a victim? Or are you saying there's something wrong with the Kuro?
If it's the Ange, I'm guessing you probably inserted the sprites/anims incorrectly in some way; I'd either check them again or use the pre-built Ange I linked to a few posts back as my reply comment.
If it's the Kuro...erg, not really sure what would be wrong there, unless you downloaded the wrong kuro.
As for editing the Kuro, I wouldn't. First of all, it probably takes a while to change the code for the Kuro to force victims into a specific anim (and even then, I'm still learning that and you'd have to ask Xion or someone for tips). Secondly, Kuro's one of the most popular rapers and often gets updated (well, relative to other rapers aside from TOBF), so you'd have to redo your changes every time a new kuro press comes out. I'd personally add the necessary anims and/or sprites for each victim I'd want to use with the kuro press. It's tedious, but it's not difficult, and you can simply use one finished victim (like Ange) as a base and just follow the import tutorial I showed earlier, with some modifications if your victim doesn't have the necessary sprites.
Can't promise much but PM me if you have any questions...would also appreciate a reply post or something if you do, to notify me, since I don't often check my messages.