A description of list view style xml structure can be found at msdn http://msdn2.microsoft.com/en-us/library/ms916812.aspx. I will explain here how to modify the view style such that a column containing bullets is added in the style.
Open document at C:\Program Files\Common Files\Microsoft Shared\web server extensions\12\TEMPLATE\GLOBAL\XML\VWSTYLES.XML. It contains definition of several list view styles provided by default in MOSS 2007 using Collaborative Application Markup Language (CAML).
Open document at C
While rendering the view to a browser, all elements are parsed and converted to simple HTML tags. Thus to add a column we need to add HTML tags rather than CAML tags. To add the mentioned column, I modified <ViewHeader> and <ViewBody> sections. The view finally looks as displayed below: