Unzip into your /wp-content/plugins/ directory. If you're uploading it make sure to upload the top-level folder. Don't just upload all the php files and put them in /wp-content/plugins/
Activate the plugin through the 'Plugins' menu in WordPress
make sure picgrab/picscache folder is writable by all ( 777 permission )
That's it!
Requires: 2.5 or higher Compatible up to: 3.2.1 Last Updated: 2011-11-25 Downloads: 2,512