Banner in client

[JMS]

Hey guys, I was wondering if anyone would be able to help me with my request, I personally have seen this, and presume most of you users have too, where you can place a picture (like a banner) in the actual client, and in a room, I am wanting to place the banner in the room, can someone guide me on how to do this?
thanks!

 

[JayC]

room ads furni

 

[JMS]

You must be registered for see links

Have I got them correct? If so its still not showing.