Mi è bastato aggiungere il seguente codice...
<asp:TableCell Width="240px" VerticalAlign=Bottom>
<aspetailsView AutoGenerateRows="False" AllowPaging=True ID="DetailsView2" runat="server" Height="300px" Width="240px" HeaderStyle-Width="100px" DataSourceID="SqlDataSource1" style="font-size: 14pt; font-family: 'Times New Roman'; background-color: transparent; text-align: left; " CaptionAlign="Left" HorizontalAlign="Center" BorderStyle="None" ForeColor="#D2D2E6" GridLines="None" HeaderStyle-Wrap="false">
<Fields>
<asp:ImageField FooterStyle-HorizontalAlign=Left FooterStyle-VerticalAlign=Top DataImageUrlFormatString="~/Upload_News_Images/{0}" DataImageUrlField="IMMAGINE" ControlStyle-Height="300px" ControlStyle-BorderWidth="5px" ControlStyle-BorderColor="Azure"/>
</Fields>
</aspetailsView>
</asp:TableCell>