After Astro & BlueFTP , SkyFiles is a cool & Recommended File manager for Asha 5xx series
SkyFiles – your Microsoft OneDrive/SkyDrive client for Asha. Easily upload and download your images, photos, videos and documents to your OneDrive.
Just choose the operation (copy, move, delete), choose files, the destination folder on tabs bottom (Phone memory, Memory card and OneDrive) and click in bottom menu Pate here. Double tap to open the file. Long touch for single file operations.