.rez modding

I'm trying to do the rez modding thing, except the DTXConverter isn't showing up with anything. I have photoshop cs3, pretty sure that I put the files where they need to go, extracted the .rez file and tried opening it in the converter.

Anyone know why that is?

Yeah, you know what guys, since your no help anyways, I'll just give up on it, because clearly no one cares at all.