Total newbie here...Please help

I want to create an extranet program that will allow users to upload jpegs and post under each jpeg. Each upload will automatically create a discuession board for that jpeg. Any recommendations as far as the program to use? I'm probably going to hire a developer to create this (less than 5K budget for the whole thing)....What programming languages or programs should this developer use?The "workspaces" also have to be secure.

Thanks

David

Sorry about that. Just saw the line about not using this board for programming questions. Please ignore my last post.