advanced uploader

I want order programming script , which is advanced uploader , has these features : - Have main categeories and sub catgeories that a visitor can browsing and downloading Files - when a member upload files for example ppt,swf,pdf and word files the script create thumbnails for it - supporting mod-rewrite in all sections : catgeories,files and the database must be UTF8 - adminstrator panel for administrator and moderator panel for moderator - specific style and 3d logo for website - support registration for visitors to become members , after they becomes members , they can download and upload files "waiting moderating" from the moderator that has a power on the section that file in ! and the admin can that - support the stats of online visitors and members now in : the homepage and catgeory and file page - support the stats of numbers of catgeories and files and dowmloaded files . - the script must have the high degree of SEO - support select the rules or power of editing the content by the administrator and give it to : a moderator group - support the profiles for all members ,moderators ,and administrator - the script must be under your hand ,in any time I want develop it and adding any feature , I should to contact you and make a deal for that - support the rtl language from right to left and specific xml-file for language of the script to translate the script to any language can you do ti ? the website will have educational content. how much it cost ? and how much it takes time ? Ahmed