Getting O2 UK Pay & Go Data Working on 1.1.3
After searching the web and playing around with a couple of config files on the iPhone I have finally got GPRS working on 1.1.3 (via the official jailbreak method). I have put together an archive with the necessary files and instructions on how to get GPRS working on your iPhone.
Simply download the archive below, extract and follow the instructions in README.txt.
(replace the $ with an s)
NOTE: This method requires you to have either SSH or FTP installed on your iPhone in order to transfer the files.