I have installed XenHabla 1.0.8 and Xenporta 1.5.3b. But when I add ChatUsers block in my portal layout, nothing comes up. I mean even no empty block, as if I didn't install it. I am not sure what I am missing. No problem in using XenHabla chat though. (you can check in www.talk2know.com, ChatUsers block should be right under online users in my sidebar).
I run php 5.3 right now. Any help will be highly appreciated.