Amp clones downloaded from the HeadRush cloud land in the Internal > Amp Clones folder and are organised by the clone artists name.
For example, if you download Al Joseph's AJ Terror clone, it will be saved inside of a folder called "Al Joseph". It will not be saved in a folder called "AJ Terror".
To access your downloaded amp clone, tap on an empty block in your rig, then select Amp Clone > Load Clone > Clone Artists Name (in this example, Al Joseph). From here, you can select your downloaded clone and tap the Load button.