Just got an iphone, what jailbreak method?

[futh29]

I just got an iPhone for my birthday on saturday, I've read about how some ways of jailbreaking doesn't work with the new bootloader or something. So i'm gonna ask the experts, which jailbreak method should I use? I use Windows XP. Lets see anything else? Oh yah, i updated to 1.1.3 :[ whoops! I didn't know about jailbreaking until after I updated =[. So many thanks for all the people that help me in advance! I'm a newbie, so pleeeeaaaasseee explain this to the fullest extent. THANK YOU SOOOO MUCHH!!!! =]