[REQUEST] script to have the character image into the text box? [VXA]

Hi! 

I'm doing a RPG game for my little sister, but I have no idea how scripts are used (Unfortunately I could not even get into a programming school to learn RWBY code  ). My request is that I would like that in the text boxes, instead of putting the character's face talking, could put an image of the whole body or waist above the character who speaks at the time (as in Mogeko games / deep sea prisoner). I was told to look for the script to do it, but I have not found yet, and took me several months looking for it. If someone could help me or tell me what script is, would do me a very big favor. 

http://galvs-scripts.com/2012/12/01/message-busts/
or
http://forums.rpgmakerweb.com/index.php?/topic/30063-napoleons-script-collection/

Thank you but..... I don't know what of all those scripts is the script I'm searching for, and where I need to place it to make it work 
Can you explain me how to add the script to my game to make it work please? 

http://blog.rpgmakerweb.com/tutorials/insert-scripts/
http://www.rpgmakerweb.com/support/products/tutorials