Shared contacts and calendar with kolab+aethera

[Darkalia]

Hi,

I'm trying to setup a shared calendar and contacts solution on a debian 
sarge server with kolab 1. I run successfully the install with openpkg 
and I created some users with the webadmin.

My problems begin with Aethera.
I installed it on windows, and I created a kolab mail account.
Mail works fine but I can't understand why calendar and contacts are not 
shared.
I synchronize with Kolab server but nothing happens.

Did I do something wrong? Is there some tips to make aethera works?

It seems that just few infos are on the net, and it would be great to be 
sure if someone succeed in this kind of configuration.

Bests regards.

-- 
Darkalia