Could anybody please help me with this 1.
I need a software that gets frames(images) and sound(AMR)
as input and outputting 3gp video.
I don't think such a software exist. You'll have to find out some workaround for this. One could be using some video editor for composing a video file (AVI, MPEG) from your images and then use it as an input for Nokia Multimedia Converter.
V / Forum Nokia
I can help you do that.