I've created a FREEWARE conversion program called GIF2SWF.

This application lets you convert your animated or static GIF files to SWF (shockwave format). This allows you to optimize filesize while mantaining image quality (for use in Banners, Icons, Intros, etc.)

Download site: http://www.anthillweb.com/daunis/gif2swf.htm
my email : daunis@terra.es

Ivan Daunis