if you want to enable the browser on the linux hosts, then u need to do the following:
- enable vncserver on the linux host.
- then download ur browser of choice
- download labber for linux (check cisco.com)
However, you cant register the jabber client as there is no Telephony or presence functionality on this sandbox.
therefore you could try reserving the large HW Sandbox which has telephony/presence functionality to register the jabber client. Items 1-3 still are relevant for the linux hosts on the large HW sandbox.