Debian Configuration :: Changing Grub Splash Image?

I decided to finally change the grub 1.98 splash image today and found a few tutorials on how to do so. They all pretty much said the same thing. Resize an image to 640 x 480, save it as a .tga, stick it in /boot/grub/images/desktop-base. I did so and opened /etc/grub.d/05_debian_theme and changed WALLPAPER="/usr/share/images/desktop-base/moreblue-orbit-grub.{png,tga}" to WALLPAPER="/usr/share/images/desktop-base/56871.{png,tga}". After that I ran update-grub. When it told me the image it found, it said it found desktop-grub. I don't know what I did wrong but it's not finding my image. Like an idiot I forgot to back up the original file but the only thing I changed was that WALLPAPER line, like I said. I had copied that version of the file and pasted it in another document before messing around with different parts of the file to see if I could get it to work. Everything ended in failure so I copied the back up in the other document and simply pasted it over the one I had been tinkering with. However, when I try to update grub I get a syntax error which I didn't before with the exact file I have now. The error reads:

/etc/grub.d/05_debian_theme: 65: Syntax error: end of file unexpected (expecting "}")

Here's my grub file.

#!/bin/sh -e
. /usr/lib/grub/grub-mkconfig_lib
# this allows desktop-base to override our settings
f=/usr/share/desktop-base/grub_background.sh

[Code]....

I'm completely lost at this point, both on how to actually change the splash image and why I'm getting a syntax error.