1. Upload the following 3 files:
/includes/parse_xml.php
/includes/cron/ico_content.php
/forum/plugins
2. Import the product XML file in the Admin CP panel > Plugin System > Manage Products > Add/Import Product
3. Go to vBulletin options > ICo-Content and set your options.
4. Go to Forums & Moderators > Forum Manager and enable this on one or more forums by editing the forum. Enable the ICo-Content, enter tags to match content with and choose how many threads you want max per day.
