I've been messing around with the program and wanted to know if anyone has tried to use a joystick controller button to send a message to another Nxt Brick. Traditionally, these controls are used to move motors, not for Bluetooth connections. Just wanted to know if someone could point in the direction i would have to go in trying to code this type of function

Look into this: http://www.robotc.net/wiki/NXT_Bluetooth_Overview. You can put your sending code in a if then statement for whether or not the button in question is pressed or not. Remember the nxts need to be paired for this to work.