Just one step back to reach to integrate jquery multi file uploader with my codeigniter project, need help!

[eluser]shahriat[/eluser]
Hi, here is my config code for jquery multi file uploader which i have set on my header view page - header.php in views folder

$("#fileUpload3").fileUpload({
'uploader': '<?=$base_url?>img/uploader.swf',
'cancelImg': '<?=$base_url?>img/cancel.png',
'folder': '<? echo './uploads/';?>',
'script': 'upload.php',
'fileDesc': 'Image Files',
'fileExt': '*.jpg;*.jpeg;*.gif;*.png',
'multi': true,
'auto': true
});

and i have kept the upload.php file in this format : root/subfolder(codeigniter folder named as subfolder)

but problem is upload.php can not be accessed in this format. If i use controller instead of upload.php file like this format "<?=$base_url?>controller/function" same problem is occurring.

Please give me some idea how can i access this upload.php file to get working this jquery config settings.

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Thanx

[eluser]Tom Schlick[/eluser]
can you please paste your controller code, views, and any other files that have to do with the uploading along with any error messages

[eluser]shahriat[/eluser]
404 error is generating its mean that my upload.php file doesn't found and i have kept this file in my subfolder folder and the format is root/subfolder. Others is ok except it.