Third party windows form GUI enhancer

we currently have a large windows form application which we host for our clients on a windows server 2008 , we currently dont have access to go to each client server and allow Themes and all those other steps to enable the windows 8 theme, so the application has the old classic ugly look which we dont want.

So are there any third party controls I can use to enhance the UI look WITHOUT having to change my controls to their controls like Telerik and Devexpress require.

I found these guys that apparently offer just that but they are MIA, dont reply to emails or phone calls....

help!!