There is a way around getting shockwave installed on Yosemite however Shockwave will not load the required essentials in order to run MyVMK. You'll either need to use a virtual machine with Windows on it or you'll need to run MyVMK Experience (VMKPal). http://forums.myvmk.com/threads/myvmk-experience-os-x-mavericks-and-yosemite.34775/