Boot Animation resolution resizing

[Special Chris]

It's not my phone ,but my A32 (Archos 32), is rooted, finally..after 6 months. But how do I edit the file? I have a bootanimation.zip file with the animation in it, but when I put it in the folder where it needs to be, and boot up, I can't see all of the animation.

Archos 32:
http://www.archos.com/products/ta/archos...us&lang=en