Download the stage and follow the steps.
1 - Check if you have both stage's .def and .sff files.
2 - Place both files in your stages folder
3 - Ensure that both files names are exactly the same.
4 - Copy the stage's name and open your data folder, following by select.def file
5A - To add the stage to a specific character, do the following:
5B - To add a stage for general use do the following:
Put extra stages here.
They will be available in VS and Watch modes.
;For example, you can insert "stages/mybg.def".
Bare in mind that you must always type .def after every stage.
Also check out my other tutorials in how to set characters order of appearance.
6 - Save everything and it's done.
Note that you don't have to add the stage twice, if you assign it to a character you don't have to add it to the stages section.You only have to add a stage into the stages section if you don't assign it to a character and want it to be used randomly.