Small CMS (form, upload images and information)

Hello, I will need a small content management system for a client to administer. It's okay by me if this is done via asp, or aspx, but php would be preferred for me. Firstly, I need a username and password fields with a submit button in order to redirect to another page (the admin page). An example is found here: www.morinurseries.net. If a wrong id/password is entered, the I would like an error message to be passed to a field saying "Invalid username or password". I need this form to protect the admin page. Secondly, I would like the administrator to control the content of this page (this is the page the public would see): Entries that would contain three fields: a title field, a description field and a price field, with a photo beside those fields. On the administrator page, I would like to see the same thing as the public page, but with a "delete" link with each entry. As well, I will need an "add entry" section where the administrator can enter the information in the three fields and upload his photo. This actually took long to explain, but should be much easier than it sounds for the skilled programmer. I also will accept partial work (either the form or the admin page) if the entire project cannot be handled by one person or team. Please do not send generic bids. Thank you very much for your interest.