Making an .icns file that works?

I've created a fun icon for a MobileMe desktop Shortcut. However, when I drag the .icns file to the desktop link to set the icon the only that appears is a Blank page.

Picture:


Can anyone give me a pointer or two in the right direction. Here's a glimpse of a larger version from when I was working on it.



I plan on making it available if I can get it to work right.

 

Anyone know anything?

Or perhaps a location where i can find this out?

I made the Icon with the Icon Composer.