Customizing Telerik Silverlight 4 RadMenu and RadMenuItems Styles Detailed Verison

Here are the 4 videos in witch is explain in every detail how to customize a RadMenu and Tips & Tricks to do this fast and easy.
Here is the source code:
http://cid-ec42eac854e5c4c7.office.live.com/self.aspx/.Public/RadControlsSilverlightApp6.zip

Part 1



Part 2



Part 3



Part 4