[Voyage-linux] Upgrade 0.7.0 to 0.7.5

[Pline Pa]

Hello!

On my ALIX is voyage 0.7.0 running.

An uname -a says:
Linux alix 2.6.32-voyage #1 PREEMPT Mon Jan 17 07:48:25 GMT 2011 i586 
GNU/Linux

How can I update to 0.7.5?

Here is my /etc/apt/sources.list
---------------------------
# /etc/apt/sources.list
deb http://ftp.de.debian.org/debian/ squeeze main contrib
deb http://security.debian.org/ squeeze/updates main contrib

# Custom repositories
deb http://www.voyage.hk/dists/0.7 ./
---------------------------

apt-get dist-upgrade say allways "nothing to do"

Is there a way with apt or must this be an install from scratch?

Sorry for my poor question.

Greetings
Pline