PHP config ?

When starting a php web app on my FC2 machine, I get the message "DOM XML
functions are not available. The message is application generated, and
seems to check for the NewDocument function to validate this. I looked
into the app source, and yes, it is coming from the app.

I sent a note to the developer, and their response was: "You need to enable
the DOM XML functions - see http://www.php.net/manual/en/ref.domxml.php. You
also need to enable the XSLT functions - see
http://www.php.net/manual/en/ref.xslt.php"

I did a little more checking and I have the following info about my setup: I
'm running PHP 4.3.6 I have libxml-1.8.17-10.1.1 I have libxslt-1.1.5-1 I
have libxml2-2.6.8-1 I
have .--with-dom=shared,/usr -with-dom-xslt=/usr -with-dom-exslt=/usr -withx
mlrpc=shared in my php configuration.

The URL rewriter in php.ini:

url_rewriter.tags = "a=href, area=href, frame=src, input=src,
form=fakeentry" The comments above this say: .If you want XHTML conformity,
remove the form entry. (Not sure if this would apply or not)

The [com] section in php.ini is currently commented out (this may be needed)

I don't see any type of 'xml' file names in the etc/php.d directory (not
sure if this should be here or not)

The /var/lib/php/session directory is empty.

I also checked /etc/php.d and didn't find an xml.ini (or any other variant)
which would contain the .so file for use as a loadable module. I looked in
/usr/lib, and found about 3 dozen possible choices.

I hope someone here can help. I can't get a response from any other
newsgroup or list, and I've been sitting on this for two days