PHP login + password

I sell photo's to schools ( in connection with privacy ) customer must only see his/her photo's I have a directory (Schools); in this i have subdirectories with several school; everyschool has different classes(so sub-sub directory) containing the photo's of the childeren WHAT I WANT: 1) a simple page where i can do 3 things: a) if new photo is uploaded via ftp Click here to update Databse ( ofcourse when there are duplicates skip those ones: Passwords already made MUST stay the same!!!! login+passw added to database( wordpress) b) Download excel-sheet Latest add photo's + generated passwords ( xls not xlxs) sorted by schools(dropdownmenu????) c) See a list of all username(photonr) + generated passwords 2) A loginpage for the customes ( can be simple) : see for an example: [login to view URL] a) customer fills in photonumber + passw b) Question to customer: do you have another login ? YES customer fills in another photonumber + passw + Question to customer: do you have another login ? etc etc till NO : They see there photos +a button to pocess to another page!( URL will come later: will be a shop page) 3) What does the customer see? a) His/here photo b) in the directory where that photo is the correspondening -g and -gb and (if present) -gs photo ( -g stands for group-photo) AND (if present) corrspondening -b photo ( brother/sister photo) c) Photo's are right-click copy protected So for example: if customer has a login for photo 21107 he sees: 21107 AND 21107-b AND 2114-g AND 21115-gb As a reference I added 2 schools with photo's AND old php files made by another developer for Oscommerce : [login to view URL] ( i think to create the passwords) and [login to view URL] (login page for the customer) and example of usernames + passwords ( can be used to login at [login to view URL]): [login to view URL] ( you make it xls!)