powerfull Mobile download portal (very light wight)

Hello, i want to Mobile download portal. who manage 4,00000 visitor perday, powerfull file managment system. example site: [login to view URL] Admin Side needed- *Add Category Unlimited. -Category Name -Category Thumb (Optional) -Category Description -Categoty Order -Category Status (Active / Deactive) -Category Flag (New / Updated / Populer) -Category Edit -Category Drag And Drop. (Up Down) -Category Transfer In To Other Category *Add File Unlimited. -Upload File By Computer -Upload File Via URL Upload (Store in Server) -Upload File Via URL Just Link -File Thumb -File Description -File Status Active / Deactive -Mp3 File Tag Overwrite (Radio Batton) -File Edit *Multipal File Upload *When Upload Wallpaper- Automatic Add Screen Size And Watermark. *When Upload File Thumb - Automatic Add Watermark And Resize *I Can Add Updates. *Per Page 6 File. (I Can Change) *Per Page 10 Category. (I Can Change) *Mobile And PC Ads We Can Manage From Admin Panel. thank you