This is the app manager log in full,

osso-application-installer 4.46, UI version 2
W: GPG error: http://catalogue.tableteer.nokia.com bora Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 34BAC20232009917
W: GPG error: http://maemo-hackers.org bora Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 5FD45CD3EA68E29D
W: GPG error: http://catalogue.tableteer.nokia.com bora Release: The following signatures were invalid: BADSIG CBFC2BECC6903E72 Nokia Internet Tablet Archive Automatic Signing Key <integration@maemo.org>
/usr/bin/dpkg-deb -f '/home/user/MyDocs/.documents/UKMP-1.621.deb'
/usr/bin/dpkg --install '/home/user/MyDocs/.documents/UKMP-1.621.deb'
(Reading database ... 15273 files and directories currently installed.)
Unpacking mediacenter (from .../.documents/UKMP-1.621.deb) ...
dpkg: error processing /home/user/MyDocs/.documents/UKMP-1.621.deb (--install):
corrupted filesystem tarfile - corrupted package archive
dpkg-deb: subprocess paste killed by signal (Broken pipe)
Errors were encountered while processing:
/home/user/MyDocs/.documents/UKMP-1.621.deb
/usr/bin/dpkg --purge `/usr/bin/dpkg-deb -f '/home/user/MyDocs/.documents/UKMP-1.621.deb' Package`
dpkg - warning: ignoring request to remove mediacenter which isn't installed.
W: GPG error: http://maemo-hackers.org bora Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 5FD45CD3EA68E29D
W: GPG error: http://catalogue.tableteer.nokia.com bora Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 34BAC20232009917
W: GPG error: http://catalogue.tableteer.nokia.com bora Release: The following signatures were invalid: BADSIG CBFC2BECC6903E72 Nokia Internet Tablet Archive Automatic Signing Key <integration@maemo.org>
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Installing wget 1.10.2-2ubuntu1mg2
Selecting previously deselected package wget.
(Reading database ... 15273 files and directories currently installed.)
Unpacking wget (from .../wget_1.10.2-2ubuntu1mg2_armel.deb) ...
Setting up wget (1.10.2-2ubuntu1mg2) ...