Since I'm not a paying customer and Mitel says Upgrade1 is "manditory", I have applied the upgrade manually after downloading the files. The upgrade seems to be installed correctly, except for the warning message I got: 
[root@tux Update1]# rpm -Uvh *
Preparing...                ########################################### [100%]
   1:libtool-libs           ########################################### [ 11%]
   2:libxml2                ########################################### [ 22%]
   3:pspell                 ########################################### [ 33%]
warning: /etc/php.ini created as /etc/php.ini.rpmnew
   4:php                    ########################################### [ 44%]
   5:php-imap               ########################################### [ 55%]
   6:php-ldap               ########################################### [ 66%]
   7:php-mysql              ########################################### [ 77%]
My question is how do I handle this warning? Do I need to do anything? Should I delete the php.ini and replace with the php.ini.rpmnew?