install google talk plugin (64bit) on gentoo Linux

firefox 'http://www.google.com/chat/video/thankyou.html'
emerge -v deb2targz &&
deb2targz google-talkplugin_current_amd64.deb &&
mkdir googletalk && cd googletalk
tar xvf ../google-talkplugin_current_i386.tar.gz &&
sudo cp -Rfv {etc,opt} /
sudo cp -Rfv usr/lib/* /usr/lib64/

Here is the content of google talk:

./etc/cron.daily:
google-talkplugin
./opt/google:
chrome
talkplugin
./opt/google/chrome:
pepper
./opt/google/chrome/pepper:
libppo1d.so
./opt/google/talkplugin:
./usr/lib:
firefox
iceape
iceweasel
midbrowser
mozilla
xulrunner
xulrunner-addons
./usr/lib/firefox:
plugins
./usr/lib/firefox/plugins:
libnpgoogletalk.so
libnpgtpo3dautoplugin.so
libnpo1d.so
./usr/lib/iceape:
plugins
./usr/lib/iceape/plugins:
libnpgoogletalk.so
libnpgtpo3dautoplugin.so
libnpo1d.so
./usr/lib/iceweasel:
plugins
./usr/lib/iceweasel/plugins:
libnpgoogletalk.so
libnpgtpo3dautoplugin.so
libnpo1d.so
./usr/lib/midbrowser:
plugins
./usr/lib/midbrowser/plugins:
libnpgoogletalk.so
libnpgtpo3dautoplugin.so
libnpo1d.so
./usr/lib/mozilla:
plugins
./usr/lib/mozilla/plugins:
libnpgoogletalk.so
libnpgtpo3dautoplugin.so
libnpo1d.so
./usr/lib/xulrunner:
plugins
./usr/lib/xulrunner/plugins:
libnpgoogletalk.so
libnpgtpo3dautoplugin.so
libnpo1d.so
./usr/lib/xulrunner-addons:
plugins
./usr/lib/xulrunner-addons/plugins:
libnpgoogletalk.so
libnpgtpo3dautoplugin.so
libnpo1d.so
./usr/share:
doc
./usr/share/doc:
google-talkplugin
./usr/share/doc/google-talkplugin:
changelog.Debian.gz