Piggyback Linksys NR041 off DSL 4 port modem

I've Googled about this and have read lots of things, so I'm not exactly sure how to configure this after reading so many varying opinions.

I want to piggyback my Linksys NR041 off my 2Wire 2701HG-B Gateway wireless 4 port modem. I have two network printers and two PC's and telephone and the 4 ports on the 2Wire obviously are not enough.

I tried to set this up last night myself, but when I plugged in the Linksys, none of the PC's (which are plugged into the 2Wire) could access the internet. Ideally, I'd like to hang one of the printers off the piggybacked Linksys.

Can someone please advise what settings I need to incorporate to get this to function? The Linksys has an uplink port, and that was what I use to piggyback from the 2Wire to the Linksys. After that, I'm not sure what else to do. When both modem & router were plugged in, I could access the config pages for both via their IP addresses.

Thanks in advance for any assistance that you can provide.