How to use pulseaudio for network stream with Raspbmc (Kodi)?

I am using Raspbmc (with Kodi 14) on my Raspberry Pi. Now I would like to set up pulseaudio to be able to stream music from all my Linux computers easily to the Raspberry pi. My problem is, that I am not able to get pulseaudio running on the Raspberry Pi. I tried the following steps:

1. Install pulseaudio

sudo apt-get install pulseaudio pulseaudio-module-zeroconf

2. Setting up pulseaudio

sudo nano /etc/pulse/default.pa

I added the following lines:

load-module module-native-protocol-unix auth-anonymous=1

load-module module-native-protocol-tcp auth-ip-acl=127.0.0.1;192.168.1.0/24 auth-anonymous=1
load-module module-zeroconf-publish

3. Start pulseaudio

First I tried to start pulse as daemon:

pulseaudio -D

I also tried to start it system wide:

sudo pulseaudio --system 

But pulse does not show up on my other machines at all (it is configured correctly there as they find each other). What is wrong here?