Help debugging a file upload on IIS

[Brian Dunning <brian@xxxxxxxxxxxxxxxx>]

Hi - I have a file upload that returns no error, but the file does not  
appear on the server. Here is the result of $_FILES:

Array (
	[f] => Array (
		[name] => Elephants.pdf
		[type] => application/pdf
		[tmp_name] => C:\WINDOWS\Temp\php3133.tmp
		[error] => 0
		[size] => 114109 ) )

Nothing new at all in C:\Windows\Temp\. PHP is properly putting its  
session files in there, so I know PHP has permission. Anyway I set  
Everyone permissions to Full Control for that directory. post_max_size  
and upload_max_filesize are both 250M. Just not sure what else to check.

PHP 5.2.6, Microsoft-IIS/6.0, Windows 2003 Server R2, Enterprise  
Edition, SP2

Thanks.