See the moving world on the main page? That was extracted in the same way. Heres how I did it.
1. MPQ extract of the .smk file.
2. Download
RAD video tools3. Play around with it, and extract the animation. It will make a crapload of files.
4. I used macromedia flash (any animation program is good) and I threw it all in and animated it.
TIP - To conserve space (in your case), animate every 2nd or 3rd frame.