how can i make a TV WALL, eg 4 monitors ?

I don't know why you would want it for uverse but I would start by doing some research...googling "create a video wall" appears to produce a lot of interesting hits that might help you get started.

uh  ok...

My thought was that uverse cat5/hdmi and all the other connectors on the back of the box might lead way to some easy way to make a wall....  

Thanks!

There is no cat5 for a tv video connection on the back of the receivers.  While there is component/composite and S-video all that is going to do is drive other tv's which those kind of inputs individually, i.e., you will get the same full picture on each video connection.  It's not going to segment the video so parts appear on each screen.  What I assume you want to do is to take a single video stream and segment it so a arrangement of monitors combine to make a single video display, i.e., your "wall".  That takes additional equipment.