VSHARE 2.7 WORK ONLY WITH PHP 5.2.3 or better, IF YOU ARE USING OLDER VERSION OF PHP, DO NOT UPGRADE.
If you are using vShare 2.5 or 2.6, you can upgrade to vShare 2.7 If you are using older version, you must first upgrade to version 2.5
You can see vShare upgrade instructions from your version of vshare at
http://labs.buyscripts.in/projects/vsha ... e_26_to_27
Before upgrading take a backup of your site including database.
If you are not familiar with installing scripts, don't do it yourself. Paid vShare upgrade service available from email@example.com for $5. If you are using too old version, its better get paid upgrade service, so you don't have to do multiple upgrades yourself.
If you find a bug report it at
Some of new features in vShare 2.7 are
http://labs.buyscripts.in/projects/vsha ... _in_vShare