How to sell IT materials in tnwict.com

I've developed an application called SHOP for those who wanna sell their IT materials on the online and for those who are looking for IT materials at Online. I've made the video for those who wanna sell their IT Materials in tnwict.com. Please look it at Youtube by clicking the below link.

https://www.youtube.com/watch?v=mXSO3Fo-fhI