How to Hook up Two (2) Wireless Routers in one Network? Please help

[rocknpop]

Hi, I just moved to my new apartment and I am having trouble getting two routers to work together. This is what I have:

Signal path: Modem (comcast) ---> D-Link DGS-1005G Gigabit Desktop Switch ---> Etherent Ports in the house

Problem: I can only connect one of these at a time:
a) Only one router to any given port (cannot connect a 2nd router or hardwire a second computer)
b) Only hardwired to my any macbook pro in the house using an ethernet cable (the router will not work if plugged in)

However, I cannot:
a) connect via router and then hardwired from a wall port (from the DLink or a wall) to a computer
b) Make the second router work

Any help would be tremendous. My routers are:
1) Lynksys E1000
2) Lynksys WRT54GL