Is there any sametime application that I can install? I really like separate application if there is anything.

I installed following in this order
1. pidgin extra protocols(Bojour and sametime)

2. Pidgin protocols plugin for conversations and contacts (AIM, Gadugadu, Groupwise, ICQ, msn, qq, Sametime & yahoo)

I created sametime account properly. When I looked at conversations, it is able to get sametime contacts. However, clicking on it is causing nothing. I am not getting text box to enter message.

If somebody pings me, I see popup with the message. However, clicking on it causing to see following message.

Internal error application conversation closed

Any suggestion to fix it? Is there any log that I can check to see what is happening?