There is no *.zip inside the outer zip-file. The outside zip-file contains:
Artist
output_html
PSD_source
readme.txt
Artist.xml
wa.xml
Artist.png
Here is the beginning of the readme file:
What's Included
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Each CSS Design .zip file contains the following:
1) output_html - HTML files for each color scheme. Useful for easy implementation into your site.
2) PSD_source - Photoshop (.PSD) source files for each color scheme. Allows for complete customization of the design using Adobe Photoshop software.
3) PNG file - Fireworks (.PNG) source file containing a frame for each color scheme. Allows for complete customization of the design using Adobe Fireworks software.
4) *XML files - XML files used by Eric Meyer's CSS Sculptor for importing each CSS design. (Please note: when importing a layout into CSS Sculptor, point to the zip file and not the XML file.)
*Each XML file references content located within the folder with the same name as the chosen design.
CSS Sculptor Design Installation Instructions
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To use a Design in Eric Meyer's CSS Sculptor, follow these steps:
1) Make sure you have the most recent version of CSS Sculptor installed.
This can be downloaded from your order history on WebAssist.com.
2) Download your new CSS Sculptor Design and make a note of the location.
3) Open Adobe Dreamweaver and, from the Insert menu, choose
Insert > WebAssist > CSS Sculptor > Layout Manager
Provide your activation code if requested.
4) In the CSS Sculptor Layout Manager, click Import and browse for the
ZIP file saved in step 2 and click OK. After the import operation is done,
you will see the new design in the list.
...