[Pmwiki-users] upload trouble with pmwiki 0.6.7

[Bronwyn Boltwood]

Afternoon, all, 

I'm having trouble with the upload feature.  I'm running pmwiki 0.6.7 on a UNIX server, 
Apache 1.3.29, PHP 4.3.4.  The PmWiki url is not changed in any way.  I can get one of two 
situations:

1.  The upload credentials are upload, attach.  I can get to and fill out the upload file 
form.  I tell it to upload the file, it transfers it, and sends me back to http://arndis.
godsong.org/wiki/pmwiki.php with a completely blank screen.

2.  I turn off upload passwords in config.php, and it still asks me for a password.  This 
way I can't even get to the form.

I'm not allowed to chmod 2777 on my web directories, so I have tried creating the uploads 
dir manually, and got the results above.  I also tried copying the entire wiki install to 
my Windows machine with Apache and PHP, running PmWiki (which did create the uploads dir 
properly), re-uploading the whole shebang to the webserver, and trying again.  Same 
problem.  It works properly if I try it on the Windows box, though, so the problem is 
specific to the server's config.

I even tried setting the permissions on the upload dir to 777, and the main pmwiki dir 
uses 755.  No change.  The relevant bit of config.php reads: 

$EnableUpload = 1;
$UploadDir = "/www/ag/a/arndis/wiki/uploads";
$UploadUrlFmt = "http://arndis.godsong.org/wiki/uploads";
$DefaultPasswords['upload'] = crypt('attach');
$EnableUploadOverwrite = 0;
$UploadMaxSize = 500000;

What can I do to make uploads work?  I really really wanted that feature!

Thanks,
Bronwyn