Im having weird issues with Lime:

Im trying to filter out certain words

I go
---TOOLS
---OPTIONS
---FILTER
and i type in words
but they still come in
Am i doing something wrong or is it not working right?
If i do wrong tell me right way
or is this sign of virus?

also when i download, the downloads dont come in at the top of the pile
ill click to download something and it will show up in the middle of stack-this is weird too and mabye virus sign?
thanks