I'm using file manager.
Here is output error message from qtstalker install

[root@Debian: /]cd /home/user/MyDocs/.documents
[root@Debian: ~/MyDocs/.documents]dpkg -i *.deb
Selecting previously deselected package libqtstalker0.
dpkg: regarding libqtstalker0_0.36-1_armel.deb containing libqtstalker0:
libqtstalker0 conflicts with qtstalker (<< 0.34)
qtstalker (version 0.32-3.1) is present and installed.
dpkg: error processing libqtstalker0_0.36-1_armel.deb (--install):
conflicting packages - not installing libqtstalker0Selecting previously deselected package libta-lib0.
(Reading database ... 42418 files and directories currently installed.)
Unpacking libta-lib0 (from libta-lib0_0.4.0-2_armel.deb) ...
Preparing to replace qtstalker 0.32-3.1 (using qtstalker_0.36-1_armel.deb) ...
Unpacking replacement qtstalker ...
Preparing to replace qtstalker-doc 0.32-3.1 (using qtstalker-doc_0.36-1_all.deb) ...
Unpacking replacement qtstalker-doc ...
Selecting previously deselected package qtstalker-quote-plugins.
Unpacking qtstalker-quote-plugins (from qtstalker-quote-plugins_0.36-1_armel.deb) ...
Setting up libta-lib0 (0.4.0-2) ...
dpkg: dependency problems prevent configuration of qtstalker:
qtstalker depends on libqtstalker0 (>= 0.36); however:
Package libqtstalker0 is not installed.
dpkg: error processing qtstalker (--install):
dependency problems - leaving unconfigured
Setting up qtstalker-doc (0.36-1) ...
dpkg: dependency problems prevent configuration of qtstalker-quote-plugins:
qtstalker-quote-plugins depends on libqtstalker0 (>= 0.36); however:
Package libqtstalker0 is not installed.
dpkg: error processing qtstalker-quote-plugins (--install):
dependency problems - leaving unconfigured
Processing triggers for menu ...
Processing triggers for man-db ...
Processing triggers for doc-base ...
Processing 1 changed doc-base file(s)...
Registering documents with scrollkeeper...
Errors were encountered while processing:
libqtstalker0_0.36-1_armel.deb
qtstalker
qtstalker-quote-plugins
[root@Debian: ~/MyDocs/.documents]

Any ideas? TIA