Help me. resizing an object.

[NavySeal]

Hello all.

I am working on my mod War against the cartel and 3rd world terrorist at shield mods.  www.geocities.com/shieldmods
Well I am making the Scorpian attack helicopter from the movie"FireBirds"  well i have it all done but one thing.  the doohoking damn the side covers 50cal.well anyways its way to big, how do i resize an oblect?  thanks

[FW200]

Select the 50cal. press shift and ctrl and move with your mouse and you can see it getting bigger or smaller