Expand the zip file, the folder structure should be
"Documentation" - contains the manual / install notes / hints and tips
"Serial - Keep for reference" - contains the serial number for the product, use this for updates etc
"Presets for CircusDaze" - contains all the INI files (presets), please place in the same folder as the plugin (if required)
"Product Legal Documentation" - License etc

The plugin itself (GX19_Color_CircusDaze.8bf) should be found in the top level. Please place this file in the 
plugin path of the host application (the INI files should also be located in the same folder)
suggestion: c:\program files\jasc software\paint shop pro 8\plugins\CircusDaze\[place the files here]

Any questions, please contact me on support at graphicxtras.com
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