Hi Manish
Thanks for testing our software and for your suggestions.
To download TalkAndWrite is necessary go through two pages. In the fist one you got the minimal requirement ( Skype +W 2000 or XP ….) and in the second page , you leave your email+name ( if you want). For some reason you got straight into second page. We will fix it.
Yes, the actual version it is one to one interaction and we are working in group collaboration tools.
The last question I answered it in http://moodle.org/mod/forum/discuss.php?d=48626
Thanks again
Marcelo