Telerik ASP.NET RadControls, anyone have experience styling these things?

I have been tasked with styling one of these controls at work, I have no experience, training or knowledge of MS Visual Studio or ASP.NET or these Telerik RadControls, since I am a designer. and have no interest or desire to work with MS technologies….

So, anyone know how edit themes for these things? The Telerik support area is of no use because I have no idea how to use MS Visual Studio in the first place.

Any tips would be helpful. thanks