Sprite Editing from VX Ace to XP

Sooo, I am trying to create a MLP RPG that would have some unique pony sprites. But there are really no RPG Maker XP pony sprites (I simply need the base so that I can draw on it) out there. They are mostly for VX Ace and MV (since they have only 3 columns instead of 4). So, I am asking if there is a way to convert it to RPG Maker XP. I am not completely sure how (I think copying the 2nd column in front of the 1st?). I have Photoshop, so I could use that. But how to copy and move the columns is beyond me (mostly I use it to make fake pokemon game covers and my profile picture). And if there is a easier way than Photoshop, please list that as well if you do know. Thanks!

In photoshop create a new sprite sheet that is wide enough for the 4th column.
Copy your existing sprite into columns 2, 3 and 4.
Copy the sprites that are now in column 3.
Paste them into column 1.

As for how you copy/paste in Photoshop (which seems to be what you are also asking, but I could be wrong), I use GIMP, but I think it is basically the same in Photoshop.
Select the area you want to copy.
Use Ctr+C to copy and Ctrl+V to paste.
If those keyboard shortcuts don't work for you, you should find the commands under 'Edit' on the menu bar.

If you need more detailed help than this, I suggest you Report your opening post and ask for it to be moved to 'Resource Support'.

Ok, thx!