Finally, managed to get through to the Concox guys through their FB page.
Pretty impressed with the way they helped me out.
1. Have managed to get the PC software to configure GT06N over USB-Serial cable.
2. Firmware version according to them is 'proprietary' [?][?] and I was asked as to why I need it. ( I guess they confused it for firmware sourcecode, the English/Chinese language gap is much more than I had imagined.
I have uploaded the software on the following filesharing sites.
http://www.4shared.com/rar/7arw3Qhuce/G ... _2014.html
Getting the file across the GFW of China was a little difficult then I had imagined Apparently, they are more used to sending 'executables' as simple file attachments, which my Gmail was scrapping. Seems access to Dropbox, Google Drive are blocked in China and hence the occasional Internet user in China are more accustomed to sending files as attachments.
Looked around, and found the Mail accounts provided by QQ.COM allow executables as attachment [:D]; it did the trick.