I know how to properly import standard-perspective spritesheets and animations, but I can't wrap my head around importing pure sidescrolling sprites.
How do I naturally incorporate animations like the example below into RPG Maker?

I saw a game* that achieves sidescrolling sprites with the free version of RMVX Ace, so it must be doable. I'm sure I have to treat the image as a standard spritesheet with the exception of the "up" and "down" animations, but I'm not entirely sure how to handle dimensions and frame placement.
The example image is 496 x 61, if that's important, and I can resize it if I need to. The other animations aren't all the same size, but I can duplicate or reduce their frames as necessary. If there's a template I can reference, my problem is solved.
This is the biggest roadblock my game is facing, and any help at all will be much appreciated!
[*This is the game in question. I haven't played it, but I assume it has animations: http://rpgmaker.net/games/6232/]

