3rd Column? BP DAILY

In the BP Daily Tags in the admin section of a blog install it has...

Tags: 2 columns, 3 columns, Fixed width, Custom header, Threaded Comments, Custom colours, Theme Options

I cannot seem to find the third column - the only place I see any reference to a possible thrid column is when your int he Theme Options and I see a refernce to left and right advert ( bit those appear in the right column )

is there actually a third column?

if so where?