:D :D :D I DID IT !!!!!!!! I FOUND THEM !!!
Here is the answer to everyone's question in the other thread.
Below are spoilers to find the Tower Board Room and complete the scenario.....
You need to make a shipyard..... Then create Lt. Frigate ships. If you notice the ship's description it says it is a "Detector Unit". Once 1 or 2 are created take them to the middle of the map between the towers.... A HUGE underwater city is then revealed. Elimitate the underwater Tower Room Building and the mission is over.
Note to us dummies.... If we bothered to read the mission objective...... it told us the whole time that Detector Ships were needed !!!! ;) ;) ;)
haha I spent about 30 minutes on that over the weekend before it occured to me that it might be underwater :o