Belkin N wireless router and tmobile mytouch

Hello,
I just recently got the tmobile 's mytouch phone and I am trying to connect to my belkin N wireless router. to watch youtube video in high quality without it loading every 5 seconds. The problem is that when mytouch scans for available networks, it only shows some of my neighbor's networks but not my own. I had the same problem with my psp wifi since i've changed to the belkin n router. But i figured that since the psp was older, the wireless device wasn't up to date. but I don't know why my new cell phone will not work on the belkin N router. If anyone had the same problems or know how to fix this problem. Please reply.