The AIO tool referred to is Ricky Wyatt's All In One tool and can be found in the Development sub-thread
. It is fairly straightforward to use. The critical thing is to ensure you have the Intel drivers for the San Diego installed on your computer before running it. There is a manual provided in the original post, which I strongly advise you read. Basically it's a case of installing the tool on your computer, running one of the files which gives you the options of various components to download (Xolo or Orange ICS, Original Gingerbread dump, themes, tweak files etc.), then running the tool itself. After a bit of setting up, this will then present you with a menu that allows you to root, apply themes, switch ROMs by simply selecting from the menu and following any on-screen prompts. One of the options is to install Orange, Xolo, or Intel logos at boot up.