static ip

I have two static ip address assigned to my cable modem and I have a singe linksys router. I would like to assign one static ip to the router and let it hand out the dynamic ip address to the rest of the computers on my network . and use the second ip address on my win 7 server so I can access it from the road. . I got it setup up were every thing is working but the server, it cant connect to the internet its like the router wont let it out the server has to have a static ip address