> For some reason I can't create an XML file for use by the GoogleMap
> API as well as echo info onto the screen.

I think the trouble may be that you are trying to do both at once.
The example at
http://code.google.com/apis/maps/articles/phpsqlajax.html#outputxml
is purely about generating XML dynamically - a php script that when
called returns a block of data 'looks like' an XML file.

The general intention is that you have a webpage running the maps API
that uses GDownloadUrl to request data from phpsqlajax_genxml.php and
gets XML in return.  If you try to embed phpsqlajax_genxml.php as-is
in the middle of another script that generates a webpage, it won't
work very well.
The idea of having seperate webpage and data-feed script is perhaps
clearer in this example
http://code.google.com/apis/maps/articles/phpsqlsearch.html

You could modify the techniques shown in phpsqlajax_genxml.php to
output a single webpage with the data embedded in it, but you have to
do more work e.g. you can't output a header from php in the middle of
a page.

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