Adding a Wireless router into an existing Network

I work for a non-profit agency in Tampa. We are trying to add a wireless Router into our network we use static IPs and we are having trouble with setting up the wireless router. It is a Linksys 54g and we already have another router acting as the DHCP we want to just add the Linksys so we can have wireless capabilities and a few extra ports for additional machines.
Were are connecting LAN Port to LAN Port and we can get internet but we can no long manage the 54G Cant even access it.
Can some one give us some simple instructions on how this is done?

 

hello,
check the info that came with your wireless router for the "default ip" type this in on a computer connected to that router, and you should be able to access the settings.

 

We need to change the default IP For it to work in or network

 

May be this can Help.

Wireless Router as an AP - http://www.ezlan.net/router_AP.html

.