iFile1.4.1-2 Update :

A File Manager and Viewer. iFile is a file manager runnning under user root.
Works for iPhone, iPod touch and now Ipad.
It allows fast navigation through the iPhone file system. You can directly view files of various types, e.g. movies, sound, text, HTML, Microsoft types, PDF, various compressed formats. For PDF files direct jumping to pages is possible. ZIP packing and compressed file unpacking is also supported. Files can be sent as email attachments. Text files and property lists can be edited. Folders and files can be bookmarked. In addition, files can be uploaded and downloaded from iFile's built-in web server.
See More Info below for Screenshots

1.4.1-2 - Bugfix Release
* Fixes
o Fixed bug that pressing Done button after a file name change in Attributes Editor did not close the Attributes Editor.
o Updated Chinese translation of change-log, features and about pages.

Download 1.4.1-2 : Official

VERSION:
1.4.0-1 - Bugfix and Feature Release
* Please note that the enhancements in this release are only available on devices with iOS 4.0 and later.
* This release contains only an updated and translated localization for Chinese, Croatian, Dutch, English, Finnish, French, German, Greek, Italian, Japanese, Polish, Russian, Slovak, Spanish, Turkish, Ukrainian. All other localizations will get updated in following minor releases.
* Enhancements and Fixes
o Added loading of libactivator.dylib.
o Corrected typo's in Chinese and English localization files.
o If trash is used and a file is supposed to be moved to trash, an already existing file at same target path gets deleted before the move.
o Added new GUI-based Property List Editor.
o Added support for extracting password protected rar files in Zip Viewer.
o Allowed rotation in all directions again.
o Enhanced mounting of USB sticks so that multiple mounts are possible at same time (e.g. using a USB hub). Maximum is currently 4 mounts in parallel.
o Enhanced Voice Over support for file browser in edit mode.
o Added thumbnailing file size limit to preferences.
o Added support for Retina display for
+ image thumbnailing
+ icon themes
+ button images in GUI
o Image Viewer
+ Added swipe functionality.
+ Added double-tap to zoom.
+ Added AirPrint support (iOS 4.2.1 and later).
+ Added support for raw file formats:
# Canon: crw, cr2
# Epson: erf
# Fuji: raf
# Hasselblad: 3fr
# Kodak: kdc
# Mamiya: mef
# Minolta: mrw
# Nikon: nrw, nef
# Olympus: orf
# Panasonic: rw2
# Pentax: pef
# Sony: arw, sr2
o PDF Viewer
+ Added swipe functionality.
+ Added double-tap to zoom.
+ Added AirPrint support (iOS 4.2.1 and later).
o Text Editor
+ nib, plist and strings files get interpreted as property list files.
o Video Player
+ Added AirPlay support (iOS 4.2.1 and later).
+ Added support for 3g2 and 3gpp2 video formats.
+ Fixed broken TV Out.
o Web Viewer
+ Added AirPrint support (iOS 4.2.1 and later).

DOWNLOAD:
MULTIUPLOAD
MEDIAFIRE

Previous Version
1.3.1-1 : Official
1.3.0-2 : Official or Official
1.2.0-1 : 4shared
1.1.0-1 : 4shared

for me 1.1.0.1 work the best.