John,
Your not alone....funny how something that looks so simple can be such a PITA, I did use profanity and it got me no where with that visor install. Do a search for visor and I think your question will be answered, you've got to bend those tabs and if I remember correctly it still ain't gonna look or feel right but will go together and look perfect. Not sure if that helps, but wanted you to know your not alone!