Hi Bryon, In Vs5.7 I see there is a "custom CSS" and a "floatbox CSS", If I want to change say the border of an iframe and add my own "loading" custom.gif which one should I edit?

Thanks again for your assistance.

Neither.

Set border colors with the innerBorderColor and outerBorderColor options. See the Options Reference for the authoritative list of things you can set through the options.

I don't have a supported facility for swapping out the loading gif. You could hack this simply by replacing the "loader.gif" file in the graphics/<color> folder for whatever color theme you're using.