Everything works but cant play audio ***SOLVED***

I worked a lot to install the system on Centos 6 (Im gonna put the steps later here in the forum)
Now I have it working but when I launch a campaign the calls are made but when anser the audio doesnt play and call ends.
I have this error on fs_cli:
2012-08-09 03:37:54.319289 [ERR] switch_core_file.c:122 Invalid file format [shell_stream] for [/usr/share/plivo/bin/wavstream.sh http://127.0.0.1:8089/Cache/?url=http%3 ... 572661.wav]!
I tried enabling the load of modules but still the same:
<!-- Endpoints -->
<load module="mod_dingaling"/>
<!-- File Format Interfaces -->
<load module="mod_shell_stream"/>
I have installed freeswitch with this guide (installing from source fails to start FS):
rpm -Uvh http://files.freeswitch.org/yum/freeswi ... noarch.rpm
yum install freeswitch-config-vanilla
The init.d script set the default daemon program as 'FS_FILE=${FS_FILE-/usr/freeswitch}', which isn't where it is installed by the RPM. Add the following directive to '/etc/sysconfig/freeswitch':
FS_FILE=/usr/bin/freeswitch
The service is installed to start. Start the service:
# service freeswitch start
How can I install it again with the necesary modules loaded?
Thanks!
Now I have it working but when I launch a campaign the calls are made but when anser the audio doesnt play and call ends.
I have this error on fs_cli:
2012-08-09 03:37:54.319289 [ERR] switch_core_file.c:122 Invalid file format [shell_stream] for [/usr/share/plivo/bin/wavstream.sh http://127.0.0.1:8089/Cache/?url=http%3 ... 572661.wav]!
I tried enabling the load of modules but still the same:
<!-- Endpoints -->
<load module="mod_dingaling"/>
<!-- File Format Interfaces -->
<load module="mod_shell_stream"/>
I have installed freeswitch with this guide (installing from source fails to start FS):
rpm -Uvh http://files.freeswitch.org/yum/freeswi ... noarch.rpm
yum install freeswitch-config-vanilla
The init.d script set the default daemon program as 'FS_FILE=${FS_FILE-/usr/freeswitch}', which isn't where it is installed by the RPM. Add the following directive to '/etc/sysconfig/freeswitch':
FS_FILE=/usr/bin/freeswitch
The service is installed to start. Start the service:
# service freeswitch start
How can I install it again with the necesary modules loaded?
Thanks!