I am having to learn skinning DotNetNuke 5 with this book at the moment and am constantly about to bang my head against the wall. Nothing ever is where it is supposed to be (according to the "old" book) in the latest version of DotNetNuke 5.

I am currently in chapter 7 and have installed the Blog autumn skin. My blog page now says "A critical error has occurred. Object reference not set to an instance of an object." How can I fix this? I don't want to give up after it took me hours to find out how to install additional modules in version 5 (which is located at host/extensions, just in case anyone else is about to badly hurt themselves...).

Help please!