Reality Factory

I decided tht I want to make the radar bitmap an animated GIF image. I mda teh effect I need with Particle Illusion and exported it into BMPs (with black background). I searched for about an hour and couldn't find anything,I need a program that will convert the bitmaps (which are 31) to an animated gif with a transparent background.
Here's the radar effect I made http://www.mediafire.com/download.php?kmziqilymoz. I'm planning to release the demo after 2 days (sunday),so I really wanted to make it fast,but I just couldn't find any software. It's not a problem for me to convert the 31 images to alphamaps if there's a program that uses bitmaps and their alpha channels to make GIFs.

search google for online gif creator. Gifworks.com comes to mind, very slow though. Also photoshop and many other image editors will create transparent gif's. ImageReady will make transparent and animated gif images. Many of the flash programs will also do this.

Amm,somebody (from the forums) told me that there's a program that makes transparent GIFs out of bitmaps and alphamaps,that would be the easiest way I think,but what's the name of that program?