Fatal error on new install

Just installed Apache 2.2, PHP 5, and MySQL on Windows (first time I have tried this other than on linux). Copied the xataface files to the htdoc directory and it reports a successful install, however, opening the first site I created I see...
apart from other things, I notice c:\php5\pear is mentioned, and that does not exist in that place
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Warning: require_once({__DATAFACE_PATH__}/dataface-public-api.php) [function.require-once]: failed to open stream: No such file or directory in U:\htdocs\xataface\test\index.php on line 12
Fatal error: require_once() [function.require]: Failed opening required '{__DATAFACE_PATH__}/dataface-public-api.php' (include_path='.;C:\php5\pear') in U:\htdocs\xataface\test\index.php on line 12
apart from other things, I notice c:\php5\pear is mentioned, and that does not exist in that place