HI Marc

This will be my second and last try to post to this thread. The last time, over two hours ago, ended with a notice that my message must first be okayed by a moderator seemed to have disappeared in to the byte nirvana. 

As to the link you have to an animation gif, that baby has one hundred and twenty-three frames, so I hope you have some time on your hands. 

Here is a link to a tutorial on using the Gap (Gimp animated package)  And here is one to the GIMP download page: it's free open source.

Not sure if it will do what you are looking for. I use the Animation Shop 3 from Jasac. It was a part of Paint Shop Pro back in the days before Corel.

 Now to see if this one is going to post normally.

PS, seemed to work this time, only did a review before 'posting' The review also posted it right away.???? Are you all having a redo of the forums or something?