I require a php script that allows me to upload pricelists to a website then to be able to set permissions as to what clients can access what pricelists.

The site has to be secure with a backend admin and frontend client access.

I have hunted the web including hotscripts with nothing that is close. Most are too complex.

I don't mind paying for the script, but the script must be unencoded to allow for modifications if required.

A coder I knew created a script to do this, but it was a crock and not an option.

If someone knows of a script that will do this job or can be adapted, I am desperate to find this to complete a job for a client.

My server runs php5 and mysql.