This is just a maintenance release for vbGallery to support the new vbulletin 4.2 navigation menu.
Upgrading from 3.01 is very simple. Just download the code and upload the /forum/admincp files which are the install and 2 xml files. There is a new xml file for 4.2 series.
After uploading the files go to your vb
admin and run the vbgallery_install.php file and select the reimport the phrases,templates and product.