Trying to figure out what your trying to do exactly.... are you claiming you cant see these systems on both LANs from this server?
Also curious as to why 2 gateways from this 2008 server.... its best to just have 1 gateway for outbound traffic. Assuming this is outbound for 2 gateways because both have same DNS, and without tables the server would be confused as to which gateway with dns takes order of precedence.