I need help please

Hello I am new here.

Here is my "question":

I have 2 routers and 1 usb adapter. (Dlink DIR-655, Dlink WBR-2310 and Belkin N150 Micro USB WIFI)

My DIR-655 is connected to the modem with a CAT5. I use its WIFI to connect my 2 laptops 1 desktop and 2 cellphones. The 2 laptops and the 2 cellphones have their own integrated wireless adapters. The desktop uses the N150 with a USB cable.

I want to know if I can put the N150 inside the WBR-2310 using the USB plug and connect it to the DIR-655 WIFI and then use a CAT5 from the WBR-2310 to plug my desktop and at same make my wireless internet cover a larger zone using the WBR-2310 as an access point. ?!?

The desktop computer is at 50 feet from the DIR-655. The N150 is getting an OK connection.