6.0.307 to v6.01.6

From v.6.01.6 readme:

3. Upgrade from v6.00.1xx, v6.00.2xx or v6.00.3xx
Before you upgrade we strongly recommend that you backup your files and your database as PHPFusion 6.01 is a major update compared to its predecessors. You need to follow these instructions precisely.

1. First you must upload the correct upgrade script from the folder named 'upgrade v6.00.xxx' to the administration folder of your site.

2. Login to your site as the Super Administrator. Under the System Admin tab of the Admin Panel, click on Upgrade then click the button marked Upgrade. MAKE SURE the page reloads stating 'Database upgrade complete', failure to do so may cause problems later on.

3. VERY IMPORTANT: Since this release contains a number of structural changes, some elements of your site will not work properly until you have updated all of your files. YOU MUST upload ALL of the files from the php-files folder. Failing to upload all of the files will cause one or more of the following problems: no admin access, lower-center and right side panels mixed up, new gallery not working and more.

4. The photo gallery in v6.01 has been completely rewritten. We have created an infusion called 'Photo Converter' which will import your albums and photos into the new database tables. You should ONLY use the Photo Converter Infusion AFTER completing the above steps. It is designed to run under specific conditions which are created by the upgrade script and therefore will not work prior to upgrading. Be sure to verify the new Photo Settings under System admin before running the Photo Converter.

5. After completing the above steps, you need to chmod the folder images/photoalbums/submissions to 777. You may also want to add a link under System Admin -> Site Links entitled 'Submit Photo' with the url set to 'submit.php?stype=p'.

If at all you are any doubt please feel free to ask one of our support sites for help, there are plenty of knowledgeable users in our community who can help or advise you regarding the upgrade process.