Gary
Shouldn't you have posted this under the TS2010 forum section? It's not really a 'community' thing.
As for the filter edits, I would have thought such a basic thing would be obvious and covered in the basic users manual that comes with the game, or failing that, it could be in the Wiki (wherever that is). It would be quite surprising if editing/deleting of custom filter rules wasn't possible at all (but on second thought, maybe it wouldn't be surprising...).
I'm new to TS2010 myself, so I'm interested in the answer, as I'm sure I will come up against the same issue at some point.
~ D