Those two are the same thing, in different words. It's likely they're using a different translation or just trying to get the point across easier.

The rest of the code looks like it's trying to call a common event in some places and relying on a parallel process event in others (especially the jumping part, which likely isn't working with squares, but with picture coordinates instead, and assuming that when you jump you're going "up" instead of wherever the character is facing). So there may be an issue with either of those Common Events...

Of course the tutorial you're following is for a side-scrolling platform game with RM2k3 and isn't too much use if you're doing a top-down RPG