Expression Studio is a very valuable asset in the toolkits of designers and developers for building Rich Interactive Applications. Along with the richness and flexibility they provide in creating compelling visual solutions, they are, like all tools of this calibre, complex by nature.
To alleviate some of the learning curve issues you may be facing in familiarizing yourself with Expression Blend and Expression Design, Lynda.com has provided some free video training on these tools. Below are the links to follow for the training:
http://movielibrary.lynda.com/html/modPage.asp?ID=359 - 3 hrs (aprox) Blend (made for the Beta but still relevant to v1.0)… Great for building a solid understanding of Blend and WPF (Windows Presentation Foundation)
http://movielibrary.lynda.com/html/modPage.asp?ID=384 – 3 hrs Blend v1.0 (WPF) training … great for more advanced topics
Please note that Silverlight is not covered in these Blend courses because Silverlight support will be in a future version of the product (Blend 2 May Preview, which you can download and try here).
http://movielibrary.lynda.com/html/modPage.asp?ID=339 – 6 hours of great content on Expression Design
In addition to the Lynda.com training, there is 4 hours of free training from Total Training are also available at www.microsoft.com/expression covering each of the four Expression tools (Expression Web, Blend, Design and Media).
Here is a complete list of WPF, Silverlight, and Expression resources.