I'm still not sure what you are asking but as for the speed you are most likely bottlenecked by your ISP; whether your router's configuration is optimal or not for the iPod Touch is irrelevant. The speeds most wireless routers are capable of well exceed your apparent alloted bandwidth (looks like 1.5mbps down, 768 up).
Not quite the attitude you should use if you actually want people to help; blackbelt534 was asking a perfectly valid question as you did not specify how your iPod Touch fit into the equation in your original post, nor did you really ask a parsable question.