Hello Alycya
When you unzipped the toolkit in your modkit folder you've got a :
bin (folder)
example (folder)
resource (folder)
BuildExamples.bat
BuildResources.bat
README.html
Right ?
then you took the steam data.pkg files and copied them in your Bin/WinData folder ? and comeback to run the BuildResources.bat ?
the resource (folder) i've put in Bold is the folder where you have all your resource files .rsc which you can open with the notepad
the .crs are usually inside the Bin/WinData folder.
Can we have a screenshot if it is different ? *ptrscr on your keyboard and open paint.exe of windows and CNTRL+V to paste your screenshot (then save as .jpg)