Client login portal, so we can arrange users & photo gallery

We require a client login portal for an existing website (details / spec below). The portal will be on a sub-domain and use the same php page template - so no designing needed. > Simple login form with a user name & password > We can administer users. > We can upload images (standard size, landscape only) with small text box and date. We need to add multiple images for each User, so only they see them... > User when logged in will see scrolling list of their images uploaded, the description & date. > User has button to 'Make Payment' - so just need simple form with name, email, inv/ref no, amount to pay and submit. We'll connect to Sage Pay and divert to a simple 'thank you' page... > Button for User to log out... > Button to link to our contact page in parent window... We will supply the buttons, fonts & text - so just need the database & coding done.