342852 File Upload Script

I need a fully working file(blob) upload script quite urgently. I can supply a semi-working php file, which includes all variables and details you need. Requirements... -Uploading a file is a requirement, and cannot be left blank, otherwise the POST wil fail. -The user will need to be prompted, if a file has not been uploaded. -The user will need to add a file, without having to re-enter all other details included in the form (session variables??)