Here we go with the sollution (support team email):
Update to SampleTank CS 64 bit from your User Area and use this to import all your older IK Legacy sounds using the Import Legacy Instruments option. Look the link below for a video on how to Import.
https://cloud.ikmultimedia.com/s/Mf8KCGYDNyw6ajPYour serial # is in the User Area > My Products > under Authorizations under SampleTank CS.
Go to the User Area:
http://www.ikmultimedia.com/userareaGo to My Products > under SampleTank CS click >>> Sounds Downloads and download the sound installers
SampleTank CS Free has 1 sound installer
Unzip each one and then install each sound installer separately, make sure to run the installer inside of each DMG/Zip to install the sounds. <<<.
The sounds should be installed into the default location (you can move the folder after the full install)
PC: C > Users > Name > Documents > IK Multimedia > SampleTank 3
Mac: HD > Users > Shared > IK Multimedia > SampleTank 3
The manuals are located here:
Under Manuals under the Product in the User Area.
Mac
HD > User > Name >Library > Documentation > IK Multimedia > Product Folder
PC
c>Program files>IK Multimedia>Product folder