Hi,
in the aspx template you could add following code:
<%@ Register Src="~/CMSWebParts/General/userControl.ascx" TagName="userControl" TagPrefix="uc1" %>
<uc1:userControl ID="userControl" runat="server" UserControlPath="path/to/your/userControl.ascx" />
In the code of your
user control you can call Telerik RadUpload.
Best regards,
Ivana Tomanickova