I have a whole bunch of icons displaying on a map, I want these clustered together as was suggested to me for a different question here...  http://gis.stackexchange.com/questions/3743/arcgis-9-3-how-do-i-increase-picture-marker-symbol-performance

A link to an example was provided but I'm not really sure where to begin.  I'll preface this by saying I'm a programmer way before I'm a gis person.

What I want to know, in total noob terms, is how can I cluster my icons for XY events on the map?

Thanks!