ITUNES RESTORED MY IPHONE

So yesterday i went on iTunes and wanted to download some games but i don't know how to use it. Anyway i pressed restore iPhone! And i went to o2 to see if i can do anything about it they said yes and write instructions down for me and said that when it opens up i need to click this this BUT ITS NOT THERE! They said i can get it back but as i said i don't know were the button is or how to do it.

English would be nice
Make sure you have the latest version of iTunes
Hopefully your iTunes should have a reasonably up to date backup
Plug in the phone to your computer
iTunes should open
click the iphone icon that appears on the right tob of screen
in the summary tab
choose restore from backup
HTH
David