Inverse color dodge not rendering in DWcs3

I have a blue-orange logo in inverse color dodge blending mode on a gradient
blue to dark blue background. It looks vibrant and wonderful in FW; however, in
both display and browser view in looks identical to "normal" mode in Dw, i.e.
dark and ugly. Is this a DW bug; i.e. will the graphic look like it does in FW
once uploaded to the server? Or is there some other issue? First time this has
happened...

Paevo Kelley multi-posted in macromedia.dreamweaver and
macromedia.fireworks

Apparently answered in macromedia.fireworks