Imvu hack 2015 works.Here is how i did it.First of all you will need to check this online imvu generator .After you have visited that site.It will asks you for your imvu username and The amount of currencies you need for imvu.After you have entered these informations you will need to click on the generate button.Then follow the instructions given by the online generator to upgrade your account.After the completion of all these steps your account should be upgraded with the number of Imvu credits and vip membership you needed.