It seems that you received detailed replies to your original post.
He is the link to it: viewtopic.php?t=10834
Everyone has a different way of approaching tuition and I think Patricia's advice is fantastic, especially the order to approach the test.
If you would like one book to get you started, I personally would recommend the IPS book of additional questions which is available from this site as it goes through through all the different question sorts.
Link here: http://www.elevenplusexams.co.uk/books/ ... %3D8%23b90
(and WH Smith)