[Already have viewer 3.6.1 do I need to update to sunshine but it saying to download when click on it]

I installed this viewer 3 weeks ago ,and when I log on its say I must update now, but when I click onto it the update it goes to the download page. What I need to know is do I download the 3.6.1 again or don't I need a update as it is only 3weeks old and so Ignoring the update notice.Not sure what to do.

[CHANGE MY USER NAME]

I AM BEEN ABUSED BY SEVERAL PEOPLE WHOM I DO NOT KNOW OR WHY THEY ARE DOING THIS. THIS HAS STOP ME FROM COMING ONLINE AT CERTAIN TIMES.I HAVE INVESTED A LOT IN SL AND WOULD LIKE TO STAY, BUT NOW I AM THINKING OF LEAVING BECAUSE OF THIS PROBLEM. AND A CHANGE OF USERNAME WOULD HELP CAN THIS BE DONE