Probley an easy question to answer.. but

[comisar]

So, do we have to put cargo section on a ship to transfer people?

[Val]

Yup. The good news is you can use it to transport troops and other equipment as well

[Gryphin]

comisar (and others),
A colony ship does not *need* a cargo bay. If you include one on a colony ship it will move more people, (see the thread on "what good is population).
If you are going to settle in hostil territory, you can fill the cargo bay witn troops or other units and they will be deposited on the planet and available for defence. You caould also drop said units off somewhere else along the way if you wanted to.

[Suicide Junkie]

The colony component has a tiny cargo bay built in, and can carry 4M people.

[Gryphin]

BooBooTheGhost ,
Welcome to the single most common gneratetor of the "Oh Phong!!" exclamation. You will find this phenomenom will strike sometime after 12 midnight. One of the first warning signs is you have just told your sweetheart, "Just one more trun" for the 3rd time and she is standing behind you with an expression that will crack your minitor.
"You have been warned"