This is the way to get the lastest compiz-fusion from the git core, so lastest plugins etc...

First remove all compiz packages from synaptic...

Code:
apt-get remove compiz*
install git-core to download from git

Code:
apt-get install git-core
download auto installer script

Code:
git clone git://anongit.compiz-fusion.org/users/omega/scripts
get into script dir

Code:
cd scripts
and, remove compiz, install compile deps and download and install

Code:
./git-compiz --purge
./git-compiz --check-dep
./git-compiz
at reboot we have the lastest compiz installed.. To update just go into scripts dir and type

./git-compiz

it automatically downloads new sources, compiles it and installs..

(the plugin headtrack doesn't compile, press n if it asks to abort)..