Book 10 SkinDictionary.txt file
The following data works only on Roheryn (as of 08/02/2007). When we go "live" with book 10, the list of assets, skin mappings, and art pack will be posted "for real".
The "SkinDictionary.txt" file is a compilation of many (if not all) of the UIs in the game in the format they need to be in for repositioning and resizing. You can cut and paste sections of the file into your SkinDefinition.xml file and modify that particular UI layout as desired.