Hey How do I update my blackberry to the latest firmware? thanks in advance.

This has been asked over and over...

Here it is in a nutshell:

Backup data / contacts >> Download and install the OS you want to use >> Delete the Vendor file >> Download Jl_Cmder and wipe the device (after wipe it will boot to white screen) >> Install new OS

Search for more detailed answer as it has been asked and answered several times over.....