adding xp bcdedit

I've looked and tried to understand the BCDedit stuff but it's a bunch of mumbo jumbo to me. Imagine that I am a monkey, and you're trying to teach me quantum physics and then try to visualize how well that would go. That is me trying to understand BCDedit commands.
Anyway. I installed Vista on a seperate partition. I figure it would do what every other version of windows did and add itself to a list so I'd have a choice on what to boot into, but it didn't.
I'd like to add XP to the boot loader so that I can choose between XP and vista on start up.
XP is on Drive C: Vista is on Drive F:
Could one of you please tell me how to do this? Perhaps even flat out tell me what to type into the command prompt? I"d appreciate it.