Thank you very much for your support, fourroses666.
There are some improvements, but I still need help.
Regarding inaccessibility to
http://www.celebrities-galore.com/manager/
Here's how the Windows Server Administrator for my dedicated server has solved the issue:
"PHP Warning: is_file(): open_basedir restriction in effect. File(C:/Inetpub/vhosts/celebrities-galore.com/httpdocs/C:/Inetpub/vhosts/celebrities-galore.com/httpdocs/manager/media/style/common/login.tpl) is not within the allowed path(s): (C:/Inetpub/vhosts/celebrities-galore.com\;C:\Windows\Temp\) in C:\Inetpub\vhosts\celebrities-galore.com\httpdocs\manager\includes\accesscontrol.inc.php on line 137
In the image below you can see that the PHP settings for open_basedir were set to use the webspaceroot and tmp folder. I have changed this setting to none, and the site is now loading."
I have attached the screenshots for other members' benefit.
That, however doesn't explain what has suddenly happened, or why other pages have suddenly stopped responding to their FURL call by alias - after performing some minor textual content change to the page and saving it. For example:
http://www.celebrities-galore.com/index.php?id=542
Isn't accessible by its alias:
http://www.celebrities-galore.com/about-our-applications
I'm still checking for possible hacking and PHP settings change, such as magic_quotes.
Thanks a lot for detecting my stupid HTML rendering of PHP's flush() function

Just to show you how far can a loner go setting their own bed.
And finally, the framework IS an up-to-date 1.0.14.