Thanks for the link, but I don't know how to manipulate WAD files.
I hope I won't ruin the original files of ROTT with this...
I opened the software, but I only could see the Sprites of ROTT things, which is still a chaos, as I've the images, but all of them are already on the editors. But in the File of Return Of The Triad, haven't found a single Sprite contained in the files there. Anyone of you know what name should I search, the ones I found are only numbers and some of them cannot be opened.