Crashplan for Dummies, aka Step by Step :)

I can't seem to install java?

:~# apt-get install sun-java6-jre
Reading package lists... Done
Building dependency tree... Done
You might want to run `apt-get -f install' to correct these:
The following packages have unmet dependencies:
apt-utils: Depends: libapt-pkg-libc6.3-6-3.11
libapache-mod-php5: Depends: php5-common (= 5.2.0-8+etch13) but 5.2.0+dfsg-8+etch16 is to be installed
libgd2-noxpm: Conflicts: libgd2-xpm but 2.0.33-5.2etch2 is to be installed
libgd2-xpm: Conflicts: libgd2-noxpm but 2.0.36~rc1~dfsg-5.1 is to be installed
libltdl3-dev: Depends: libltdl3 (= 1.5.22-4+etch1) but 1.5.22-4 is to be installed
php5-mcrypt: Depends: php5-common (= 5.2.0-8+etch13) but 5.2.0+dfsg-8+etch16 is to be installed
sun-java6-jre: Depends: java-common (>= 0.24) but it is not going to be installed
Depends: sun-java6-bin (= 6-07-3~bpo40+1) but it is not going to be installed or
ia32-sun-java6-bin (= 6-07-3~bpo40+1) but it is not installable
E: Unmet dependencies. Try 'apt-get -f install' with no packages (or specify a solution).
:~#

and the dependencies are going further than this

-> sun-java6-bin: Depends: unixodbc but it is not going to be installed
-> unixodbc requires odbc
etc
etc