I am very excited about the new Reflex Template, but in looking at the system requirements, I am a bit hesitant to use it as my VPS Server is running PHP 5.2.17 and I have the Reaction, Nebulae and Tachyon Templates all running fine.
My question is; if I have the server's PHP changed to a 5.3.+, how will that affect the templates I am running now? If so, what are the consequences?
It is advisable to upgrade to php 5.3 as 5.2 has reached end of life. I have all RT templates running on php 5.3 with no problem. The only problems I experienced was with mySQL 5.5.+
If you need to have the FTP layer enabled you just need to replace this file: <root Joomla>/libraries/joomla/client/ftp.php with the attached version. The directory path is included just upload the zip file and extract it on the server.
see this from php.net
"All PHP users should note that the PHP 5.2 series is NOT supported anymore. All users are strongly encouraged to upgrade to PHP 5.3.6"
Of course you should do some testing first on a local server. for XAMPP version 1.7.3 has worked well for myself and others. XAMPP 1.7.4 has given some issues due to the MySQL 5.5.+ version
the ftp.php file is part of the joomla core component files for Joomla 1.5.23. It only needs to be in that location for each Joomla install, if you are using the FTP layer. You can do this before completing the install process to avoid the errors realted to the ftp.php deprecated mb_ereg functions
If I understand your last comment correctly, are you stating that I should first install the new ftp.php files in my Joomla sites (1.5.23), before I have my server updated to php 5.3.6?