You welcome... to this wonderful community..
You can upload photos by :
Click on "Setting" from your profile
Setting will display like this..
Just copy URL/ address of your desire photo to where it's say "Profile picture URL after done copy to the profile box.... U can save the setting..
I saw that usually like facebook or Google we get to upload the photo and this Does not have that function .
what would be t he Best Option in this case ?