add a Interactive obituary to my joomla site

I currently have a website that is joomla 1.5 and right now it allows customers submit to have us create obituaries. I would like to have a spot where we post the obituary with a easy form fill with info like name, obituary and picture and when I put in there name like John smith, I then can send the family to the url [login to view URL] smith where they can log-in in and view their family obituary plus upload photos, leave comments/guest book ( while leaving a comment have the ability to purchase animation flowers, candles, balloons, teddy bears, etc. to add to the comment), share stories area, also would like the ability for them to send private messages to others who have posted. the attached photo will show the idea of how the obituary is posted and the tabs below are layed out. Guest book will be the tab its starts on and they can log in and post the comments on that. then the photo tab where others can view or post more photos. Stories tab would be for longer posting for thoughtful writing of friends and families. Would love to hear your ideas and discuss what needs to be done.