Originally Posted by chatserv

Even while this has already been mentioned by the nukemods team i can't stress this enough:

I know many will download PHP-Nuke without bothering to check if there is
anything they should& be aware of when upgrading, for those that do some
research before upgrading here's a tip or two:
1-Make a backup of all files and database tables before upgrading.
2-If using Tom's bbtonuke port with PHP-Nuke 6.0 DO NOT USE THE
upgrade60-65.php FILE TO UPGRADE, instead use nukebbsql.php which you can
get from NukeResources,
NukeCops and
NukeMods.
3-PHP-Nuke 6.5 was designed for php 4.1.0 or better and it requires
GD libraries to be present, get analyzer from
NukeCops to check these and
other aspects.