I am needing to transfer an old version of Gint my company uses (version 8.2) from an old computer that is on its last leg to a new computer. We have the single user software key. I have the licence ID and the client ID. The problem we are having is we cannot find the installation disc. Is this required to install on new computer? if so is it replaceable? And is there any other things we need to know or do to transfer to new computer?