[BlueOnyx:05961] php failing under preview

[Robert Fitzpatrick]

I was not able to get php web sites working under the Preview mode. The 
error_log indicated an open_basedir restriction. Under normal 
non-preview mode, the site is fine. So, I added...

php_admin_value open_basedir /tmp/:/var/lib/php/session/:/home/.sites/

to the /etc/httpd/conf/vhosts/preview file and that worked. Will that 
get overwritten at some point?

However, now I have a path problem with that site we are trying to 
preview since it has wordpress in the root folder (transferred from 
another host) and it is looking to the documentroot for those wp-* files.

[Wed Dec 01 09:52:02 2010] [error] [client 72.64.244.50] File does not 
exist: /var/www/html/wp-content, referer: 
http://webremote.enzymedica.com/www.enzymedicablog.com/

Is there any way to tell preview how to look at the new document root? 
Although we have this site live now, I am trying to work out these 
issues for future previews.

Thanks, Robert