Adding Belkin N Wireless F5D8236-4 To Motorola SBG6580

Looking to add my belkin wireless router to Sbg6580 router as an access point to extend wireless. I've read up enough to understand the fundamentals - LAN to LAN, changing IPs, turn off DCHP etc. - but am confused by a couple of things.

First, belkin faqs says to Open the router page, click on "use as access point" (I get that) "Select Enable" (I also get that), and then it goes on to say "This will give you the options to set the IP Address and Subnet mask for the router.**These settings should match your existing network settings; by default the IP address will be set to 192.168.2.254 and the Subnet mask will be 255.255.255.0". Does this mean to set the IP address of the Belkin to that of the Motorola (which is 192.168.0.1) on this page?

Then the FAQ goes on to say access the LAN and "change the IP Address to something such as 192.168.2.47 or you can use 192.168.2.200.**As long as the first three sets of numbers match your existing network, you will be fine". I thought the LAN IP address should fall outside the DCHP range of the Motorola? So if the DHCP range for the Motorola is 192.168.0.2 through 192.168.0.250 then I'd assign 192.168.0.251 to the Belkin?