Okay, I'm awake now.

Here's what you do. All the icons for Freespace are two ANIs- one for hilighting it, one for fading it in or out. Find the two anis (using VPview) for the same ship that are about the right size for what you want. Open them in ANIview and see how it works. Extract all the frames as bitmaps.
Using your screenshots of the ship in modelview, convert them to the palette of the ani frame you're using, and make sure the brightness balance is right. Save them as PCXs. Now you have all the frames you need for your anis.
Using ANIbuilder, make your two anis to the same specifications as the original ani you used. Make sure they work OK. Then, move the anis to the right data directory and edit the icons.tbl to include your ani. Open FRED and see if your icon shows up where it's supposed to.
I think that's about it, except that you need to make sure you have the right palette in the icon, or else it will screw up the colors in-game. I figured all this out on my own, by making the Karnak icon in the Port. Hope it helps. :wink: