An article I wrote on how to modify The Code Wiki to use Jeremy's StructureMap has just been published on DotNetSlackers. You can see the article it here.
This is an introductory article on Dependency Injection as a whole and should be a pretty easy read - whether you know The Code Wiki or not.
There were a lot of best practices I left out of The Code Wiki, such as using a DI Framework, for fear of over complicating everything. These articles are the outlet I'll use to discuss those features in separately from the main Code Wiki system/book. Hopefully others will also see opportunity to write their own articles about it :)
Anyways, you'll see how Jeremy's done a great job of making StructureMap painless to use. It's also very flexible (which I didn't really get into).
Worth mentioning that you can win an XBox360 for writing an article for DNS :)