TomTom UK & Ireland 1.6 for jailbroke iPhone +celebrity

First your iphone needs to be jailbroken with installous

Then you need to install WinSCP onto your computer

You still need to be connected to a Wi-Fi, and you need to retrieve the IP as follows

Get the IP to use WinSCP by
1) Go to your iPhone settings
2) Click the Wi-Fi
3) Now your on the Wi-Fi settings page click the little blue arrow at the end of your connected network
4) you can now see your IP address something like 192.567.2.7