As above stated logout and run raspi-config but after that you may need to upgrade you Raspbian Wheezy, it is best to boot to command line and get used to working outside GUI to learn more....
If you have changed the configuration to boot to command line after logging in type startx and press the enter key to launch the LXDE Desktop GUI
WiFi should have a WIF_Config desktop icon and Bluetooth needs the bluez-utilities installed.
You need to be at the command line to type the following, followed by pressing the Enter key and following prompts:
After rebooting after logging in and at the command line type the following, followed by pressing the Enter key and following prompts:
apt-get install bluez
apt-get install bluez-utils
apt-get install blueman
Login will ask for the login / pass then can type startx