CS4: Image preview size different than what's saved

i've been attempting optimize animated banner gif's have been running confusing problems. when configure image quality options gif, size image preview dialog shows me not size that's saved hard drive. in fact, image size saved seems arbitrary compared settings i've used. example, i've tried optimizing 200x200 gif 2 states (settings: 256 color, 100 loss, 0 dither) , it's come out 45k, tried saving same image 2 colors , it's come out 70k (and not 2 colors, might add). admit i'm fireworks beginner i've been using photoshop years, understand save dialog , image optimization.

 

my general process has been save each gif state high quality jpeg , import each state fireworks , save animated gif. here appreciated have waiting on these banners.

you need 'export' animated gif not 'save as.' note gif format never give result jpeg's because of limited number of colors available. might better resut exporting in flash format.

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