Images not shown in Diagram view SCOM 2012 R2

Dear SCOM Experts,

I have been creating mpbundle using C# . I was able to add resources to the images. I was able to import the .mpb file. I was able to discover and monitor the components, but I could not see the images for components in diagram view. I have followed the procedure in msdn website 

http://msdn.microsoft.com/en-us/library/gg986188.aspx 

EnterpriseManagementGroup mg = new EnterpriseManagementGroup("localhost");
ManagementPack mp = new ManagementPack("Folder\\RePackaging.Library.xml");

System.IO.FileStream fileStream1 = new System.IO.FileStream("Folder\\Resources\\package_16.png", System.IO.FileMode.Open);
System.IO.FileStream fileStream2 = new System.IO.FileStream("Folder\\Resources\\package_32.png", System.IO.FileMode.Open);
System.IO.FileStream fileStream3 = new System.IO.FileStream("Folder\\Resources\\package_64.png", System.IO.FileMode.Open);

ResourceStream resStream1 = new ResourceStream(mg, fileStream1);
ResourceStream resStream2 = new ResourceStream(mg, fileStream2);
ResourceStream resStream3 = new ResourceStream(mg, fileStream3);

ManagementPackBundleWriter bundleWriter = ManagementPackBundleFactory.CreateBundleWriter(".\\");
ManagementPackBundle bundle = ManagementPackBundleFactory.CreateBundle();

bundle.ManagementPacks.Add(mp);

bundle.AddResourceStream(mp, "RePackaging.Library.Resources.Images.Package_16", resStream1, ManagementPackBundleStreamSignature.Empty);
bundle.AddResourceStream(mp, "RePackaging.Library.Resources.Images.Package_32", resStream2, ManagementPackBundleStreamSignature.Empty);
bundle.AddResourceStream(mp, "RePackaging.Library.Resources.Images.Package_64", resStream3, ManagementPackBundleStreamSignature.Empty);

bundleWriter.Write(bundle, "RePackaging.Library");
I had even used MPViewer to check if the images are in .mpb and I could see the images in Resources section
in MPViewer software. I dont understand why i could not see images in diagram view.Please help!!!!!!