Just did not know how to describe the problem. I’ve tried about 10 different jabber clients and only two of them did not shows the contact list. And one of them Spark. Suppose the answer would very shot - change the client app. The Kerio IM futures lack of many services - such file transfer and many other. But they have the embedded IM client - so the users use it for only speed text messaging.
They even recommend the different ones:
`Recommended IM clients
For information about sending chat messages through Kerio Connect Client, read Sending chat messages in Kerio Connect Client.
Kerio instant messaging service is based on XMPP, an open technology for real-time communication.
Kerio Connect recommends the following instant messaging clients:
Pidgin for Microsoft Windows
Psi for Linux
Messages (iChat) for Mac OS X`