This is a 
listing, in Journal Entry format, of the values currently recorded as brought forward from last year into this year's accounts.
In the two left hand columns you will see the number of the Detail account containing the brought forward value, and the offsetting account number which is 70000 - your Capital A/c.
You may see a * at the end of the description column of one or more of the items displayed. This means that you have more than one brought forward value for a specific account. This may indicate two separate values that you want to show separately, or it may mean that you have inadvertently duplicated a brought forward item.
You are not encouraged to create B/Fwd items manually in this year's accounts. However, if you do add a brought forward item in a Detail account using 
Add Item, remember to pre-fix the description with B/Fwd, and to make the offsetting account number 70000.
If you are using Skill level Personal, you will only see the Review GL B/Fwds tab. The Review Customer B/Fwds tab and the Review Supplier B/Fwds tab are only visible if you are using Skill level Business.
A final note: the brought forward values of your Bank, Charge, Customer and Supplier accounts are updated automatically each time you reconcile those accounts.