General Question about Flash

Hi there..
I hope this isn't posted anywhere yet..
If you download a video of flash..like an animation of say Fish swimming in a bowl..Can u modify it at all..? Do u have to have Flash to modify it...like the software...
An example would be..say you wanted to color the fish..as opposed to the color they are..I have noticed some of the animations or movies..are nice..but they don't fit in the game u are making..Like the graphics are different..How would someone go about changing them or making them fit in your game..sorry if this is a dumb question..
Or would u simply go with out and look till u find something that fits..
Thanks!~

I hope this isn't posted anywhere yet..

If you download a video of flash..like an animation of say Fish swimming in a bowl..Can u modify it at all..? Do u have to have Flash to modify it...like the software...
An example would be..say you wanted to color the fish..as opposed to the color they are..I have noticed some of the animations or movies..are nice..but they don't fit in the game u are making..Like the graphics are different..How would someone go about changing them or making them fit in your game..sorry if this is a dumb question..

Thanks!~