Your doing transparency and radial effects wrong
.
EPS 10 do not support those (sometimes radial will work, but most time it will rasterize (convert to bitmaps)).
To fix transparency issues, here is what I do. I get the color the mix of the transparent item and backgroud makes, then use that color to replace the transarency. We see no difference whatsoever doing this.
For more information, I just posted a useful link for this. Extended select script also helps to find Transparency and Raster item.
See this thread it will surely help you:
http://www.microstockgroup.com/illustration-general/saving-eps-file-%28/msg183893/#msg183893
