Hi Moon,
In Q3 2008 Beta you should do this:
<telerik:RadDatePicker ID="RadDatePicker1" runat="server"
Skin="Inox">
<
DatePopupButton ImageUrl="..." HoverImageUrl="..." />
</telerik:RadDatePicker>
Replacing the images does not work, because RadCalendar and the pickers now use CSS sprites by default and you have to set ImageURL and HoverImageURL explicitly in order to fall back to the way the control worked previously.
Best wishes,
Dimo
the Telerik team
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