If the post isn't approved then B_Last_Approved will be set to 'no' and will not be used to update the last post info. (or it didn't used to, did that change?)
Once the post is approved it will be appended to the last post info. (or it should be)
I'll have to go over everything sometime soon to add in the ability to track anonymous post names if used/allowed. If somehow this field has not gotten used for the way I had intended I'll get it fixed.
