The current version is 11.1. If you wish to install an older version, read this Knowledge Base Article. This will also tell you how to download.
The document on Installing an older version of the product ... States that if the product is already registered copy it from, "\Program Files\Common Files\Intel\Licenses\". I cannot access this location as the hard drive has crashed.
The document on acquiring a download for an old install... The first step is to login and see all the product subscriptions. I don't know who regsitered the program 2 years ago but it was purchased by a company not an individual.