Setting up dcs5300g

i have a dcs-950g which works fine. on initial set up the default address for the 950g was 192.168.0.20. the default gateway on my linksys router is 192.168.1.xx. i was able to set it up and change the address on the 950g to what i needed 192.168.1.xx. and foward a port on the router, the wireless camera works fine from home and the web.
my problem is setting up a 5300g. the cameras default address is 192.168.0.99. during install when i plug the ethernet cable into the comp and camera its reconized by the wizard but the "link to selected devices" and the 2 buttons under set up are grayed out. when i try to use set up i get an unable to connect.
on the task bar when i plug the cable in i get an error message about little or no connectivity.
im setting this up from the same laptop that i did the 950g 2 weeks ago.
i already set up an ip and port address in my router (linksys BEFSR41 v2) for the 5300g and am going to use the wireless ap like i do for the 950g, but i cant get past the initial screen to access the set up. any help would be great.