sorry i dont have a perfect english!
i search a complet clone of . tagworld. com with all features of tagworld:
own custom website with css styles
blog and fotoblog
store (display your images^)
photostack (add a set of pictures)
invite friends from: yahoo, msn hotmail, gmail
this site must be full integratet to the pandion messenger www. pandion . be i think in the messenger a additional window to view the complete site, acess to the blog, video, audio from the messenger.