What he said, and it's all in the guides I linked although I thought I did not need the ADB drivers as I had some other driver installed that was allowing me to mount my phones SD card as mass storage device and transfer files - I did need the ADB driver installed to allow Uniflash 1.2 to detect my phone properly.
1. Install ADB drivers if you have no already done, you can find them in the PC Drivers directory of your phone if you can access it, if not they are on the main Vodafone Smart II root thread on XDA Developers forum - I am unable to post there due to my low post count.
2. Rename recovery.zip to update.zip and leave in the root dir of your SD card.
3. Install Uniflash 1.2, I used that specific version.
4. Connect phone to computer by cable and run Uniflash. Don't press anything on the main screen, it should detect the phone itself.
5. Once it has been detected enter the flashing option and select 'Boot to recovery', I had to press this several times whenever I wanted to access it.
6. Allow your phone power off and power back on by itself, don't press any buttons.
7. Choose the option which is something like 'update from SD card' and select update.zip if asked but I am not sure if it will.
8. You will get a message notifying you root access has been unlocked.
Note Uniflash at first did not detect my phone properly but after trying a few times it did.
I hope this can help somebody.