While I was clicking through links today, I happen to come across this page:
http://www.famitsu.com/blog/tkool/. In the newest post as of 3/14/2008, there's a link to a page that contains a
VX Character Sprite Generator. Seems it was based off of the XP generator from
this site, or that's how I read it when put into a Babelfish translation.
PLEASE NOTE:
You must click the download button right below the character preview, not right click and Save Picture As. Usually if it is working correctly, the default file name will be "image". If it is not, or if your picture does not load for you after saving, refresh the generator page, wait a minute, and try again. Remember, you must click the download button, and you must save as a PNG. Additionally, in order to use a single spritesheet instead of a collection of eight like the RTP, you must name your file with a "$" at the beginning of the file name.