Plug in problem with viveza an lightroom 2

Hello all  need a little help here .. ok i am running xp sp3  an i am running lightroom 2.2  an i am trying out viveza 1.003 as a plug in . i cant it to show up in the plug in list an the one time it did i couldnt use it .. i forget which folder i put it in ..  i cant seem to add it throw the add plug in.  what folder dose it need to be in an why isnt it work ..  the files i work are are in raw could this be it ?? any help would be great, becouse i have been googling this with Noo help at all ..