A friend helped me jailbreak my OTB 1.1.1 phone and then upgrade to 1.1.2. That was a while ago and I have gotten behind in the updates. To try and find a way to safely upgrade and jailbreak at 1.1.4 I started reading up on the forums. I was about to try and jailbreak my iphone with iLiberty+ but I was unsure weather running iLiberty+ on Vista would cause any problems, I also didn't know which options to check to get cydia or installer on the Iphone.

So far:
To get to 1.1.4, I used the Itunes "restore and update" to get to 1.1.4. From this state can I Jailbreak?

Thanks for the Help in advance!

OS: Vista