Upgrade Tiki site
It is recommended that you always upgrade to minor versions (e.g. from 7.3 to 7.4) of your current release to remove security vulnerabilities.
How an upgrade works:
1-Backup all the files and database from your current installation.
2-Unpack the new version, preferrably into a empty folder.
3-Copy any custom files (css, uploaded files and images, custom templates) from your backup.
4-Run the installer (tiki-install.php) which upgrades the database
http://www.zigguratoil.com
http://www.zigguratoil.com/product/
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