Adding NEW "message icons"

[loveacrossborders]

I've searched and searched these forums tonight to find a way to add new "message icons".

What I mean by message icons, is the icon that you choose from the drop down list when you start a new message or make a reply. I understand that the icons need to go in the mytheme/images/post directory. But how do I add NEW message icons with new names?

I want to add new names, not just switch icons. 

[Grudge]

Either directly edit Post.php, and add the new icon name to the icon array in there (Search for xx.gif, and you'll see exactly where I mean)

OR

Install the mod on my package server that gives you an admin area to do just what you want.

[loveacrossborders]

Duh! It was so easy  .

In case anyone is curious..
open: sources/post.php
around line 725 (SMF 1.01) you'll see the array
here you can change the name.

[kassie]

Hi 
I tried applying the Message Icon Manager & I got 2 failures

10. Execute Modification ./Themes/default/Post.template.php Failure
11. Execute Modification ./Sources/Post.php Failure

I didn't proceed.
how can I fix this?