Technological frustrations

Today's frustration comes from trying to put a widget into my blog but finding it to be more difficult than I anticipated.  The problem stems from a basic lack of html/xml understanding.  My directions tell me to copy and paste the code in the space provided but there is no space provided.  At least not to my untrained eye.  I have tried the html tab and pasted what I thought was the correct code in the proper line, closed the code but I still get either an error message telling me its not correct or a feedjit link that does not update.  UUUUGGGGGGHHHHHHHH!!!!!!!