To Answer your question--EightOTwo.
I don't think its done by him unless he is behind boonex.com :)
You can get this at
http://www.boonex.com
Here is a demo
http://www.boonex.us/
http://www.boonex.com/products/ray/raydemo/
http://www.boonex.com/unity/id/home/sajha
Hot s c r i p ts.com is the largest site to find such s c r i p t...
If you know PHP and MySQl then you can also customize to some extent.
I wish San would have integrated sajhasansar into sajha but sajha is done in Cold fusion whereas sajhasansar is in PHP.
There is another site called nepal nepal.com (without any space in between)--which was started before this one.
Its good to see such sites coming along since our nepali net users are also growing...use them responsibly.
Take care.r