Have you thought of trying a better internet trading site like eTrade?
eTrade has Huntleys and a good variety of other research, with good explanations and definitions of terms. Most of the material on the site is very easy to read.
I'm not sure how the "Value" feature works. I presume it tries to indicate whether the current share price is under or ovalued, based on Westpac's idea of the fair market value.
Book value per share is normally the company's total assets on its books divided by its number of shares. The value is usually based on their financial statements, whereas market value is always a better gauge.